Question 1

By what percentage did Laptop sales increase from January to April?

Accepted Answer

Step 1: Laptop sales in Jan = 120 thousand, in Apr = 180 thousand.
Step 2: Increase = 180 - 120 = 60 thousand.
Step 3: Percentage increase = (60 ÷ 120) × 100 = 50%.
Answer: 50%

Question 2

What is the average monthly sales (in ₹ thousands) of Headphones across all four months?

Accepted Answer

Step 1: From Table 1, Headphones sales: Jan (60) + Feb (80) + Mar (100) + Apr (120).
Step 2: Total = 360 thousand.
Step 3: Average = 360 ÷ 4 = 90 thousand.
Answer: 90

Question 3

In which month was the sale of Laptops maximum?

Accepted Answer

Step 1: Compare Laptop sales from Table 1 across all months.
Step 2: Jan (120), Feb (140), Mar (160), Apr (150).
Step 3: March has the highest value of 160 ₹ thousands.

Question 4

What is the ratio of Headphones units sold in February to Headphones units sold in April?

Accepted Answer

Step 1: From Table 2, Headphones units in Feb = 160, in Apr = 240.
Step 2: Ratio = 160 : 240.
Step 3: Simplify by dividing both by 80: 160 ÷ 80 = 2, 240 ÷ 80 = 3.
Answer: 2:3

Question 5

What is the total sales (in ₹ thousands) of Mobiles across all four months?

Accepted Answer

Step 1: Add Mobile sales from Table 1 for all months.
Step 2: Jan (180) + Feb (200) + Mar (220) + Apr (210) = 810 ₹ thousands.

Question 6

What is the average number of Headphones units sold across all four months?

Accepted Answer

Step 1: Add Headphones units from Table 2 for all months.
Step 2: Jan (80) + Feb (100) + Mar (120) + Apr (110) = 410 units.
Step 3: Average = 410 ÷ 4 = 102.5 units.

Question 7

By what percentage did Tablet sales (in ₹) increase from January to March?

Accepted Answer

Step 1: Tablet sales in Jan = 60 ₹ thousands (Table 1).
Step 2: Tablet sales in Mar = 80 ₹ thousands (Table 1).
Step 3: Increase = 80 - 60 = 20 ₹ thousands.
Step 4: Percentage increase = (20 ÷ 60) × 100 = 33.33%.

Question 8

What is the ratio of total Laptop units sold to total Mobile units sold across all four months?

Accepted Answer

Step 1: Total Laptop units (Table 2) = 30 + 35 + 40 + 37 = 142 units.
Step 2: Total Mobile units (Table 2) = 90 + 100 + 110 + 105 = 405 units.
Step 3: Ratio = 142 : 405. Simplifying by dividing both by common factor.
Step 4: 142 : 405 ≈ 7 : 20 (approximately, but exact ratio is 142:405).
Step 5: Simplified form = 142:405 or approximately 7:20.

Question 9

What is the total sales (in ₹ thousands) of Mobiles for all four months?

Accepted Answer

Step 1: Add Mobile sales from Table 1 for all months.
Step 2: Jan (180) + Feb (200) + Mar (220) + Apr (240) = 840 thousand rupees.
Answer: 840

Question 10

In which month was the average price per unit of Tablets the highest?

Accepted Answer

Step 1: Calculate average price per unit for Tablets each month (Sales ÷ Units).
Jan: 90 ÷ 45 = 2.0
Feb: 110 ÷ 55 = 2.0
Mar: 130 ÷ 65 = 2.0
Apr: 150 ÷ 75 = 2.0
All months have the same average price of ₹2 thousand per unit.
Answer: All months are equal (but if forced to choose, Apr shows highest absolute sales)

Question 11

What is the percentage increase in sales of TechHub from January to April?

Accepted Answer

Step 1: January sales of TechHub = ₹45 lakhs. April sales of TechHub = ₹72 lakhs. Step 2: Increase = 72 - 45 = ₹27 lakhs. Step 3: Percentage increase = (27/45) × 100 = 60%.

Question 12

What is the total sales (in ₹ Lakhs) for all five product categories combined in February 2024?

Accepted Answer

Step 1: Add all February sales values.
Electronics (52) + Clothing (33) + Home & Garden (28) + Sports (22) + Books (16) = 151 ₹ Lakhs.

Question 13

By what percentage did Electronics sales increase from January to March 2024?

Accepted Answer

Step 1: January Electronics = 45, March Electronics = 58.
Step 2: Increase = 58 - 45 = 13.
Step 3: Percentage increase = (13/45) × 100 = 28.89% ≈ 28.9% or approximately 29%.
Rounded to nearest whole number: 29%.

Question 14

What is the average monthly sales (in ₹ Lakhs) for Clothing across Q1 2024?

Accepted Answer

Step 1: Clothing sales: January = 30, February = 33, March = 36.
Step 2: Average = (30 + 33 + 36) / 3 = 99 / 3 = 33 ₹ Lakhs.

Question 15

By how much (in ₹ Lakhs) did the actual March 2024 sales of Home & Garden fall short of its target?

Accepted Answer

Step 1: Actual March sales for Home & Garden = 32 ₹ Lakhs (from Table 1).
Step 2: Target sales for March 2024 = 38 ₹ Lakhs (from Table 2).
Step 3: Shortfall = 38 - 32 = 6 ₹ Lakhs.

Question 16

Which product category showed the highest absolute increase in sales from January to March 2024?

Accepted Answer

Step 1: Calculate increase for each product:
Electronics: 58 - 45 = 13
Clothing: 36 - 30 = 6
Home & Garden: 32 - 25 = 7
Sports: 25 - 20 = 5
Books: 18 - 15 = 3
Step 2: Electronics has the highest increase of 13 ₹ Lakhs.

Question 17

Which store has the most consistent sales across all four months (least variation)?

Accepted Answer

Step 1: Check sales variation for each store. PowerShop: 60, 60, 60, 60 (all equal, variation = 0). TechHub: 45, 54, 63, 72 (increasing by 9 each month). ElectroMart: 50, 55, 60, 65 (increasing by 5 each month). GadgetZone: 40, 48, 56, 64 (increasing by 8 each month). DigitalMax: 35, 42, 49, 56 (increasing by 7 each month). Step 2: PowerShop has zero variation, making it the most consistent.

Question 18

What is the average sales per customer (in ₹) for ElectroMart in March?

Accepted Answer

Step 1: ElectroMart sales in March = ₹60 lakhs = ₹60,00,000. Step 2: Customer count in March = 24 hundreds = 2400 customers. Step 3: Average sales per customer = 60,00,000 / 2400 = ₹2500.

Question 19

In April, what is the ratio of total sales of GadgetZone to PowerShop?

Accepted Answer

Step 1: GadgetZone sales in April = ₹64 lakhs. Step 2: PowerShop sales in April = ₹60 lakhs. Step 3: Ratio = 64:60 = 16:15 (dividing both by 4).

Question 20

By how much did the total customer count (all stores combined) increase from January to April?

Accepted Answer

Step 1: Total customers in January = 15 + 20 + 16 + 30 + 14 = 95 hundreds = 9500. Step 2: Total customers in April = 24 + 26 + 25 + 30 + 20 = 125 hundreds = 12500. Step 3: Increase = 12500 - 9500 = 3000 customers.

RRB Group D Mixed DI (2-graph sets)

Mixed DI (2-graph sets)— Rules & Concept

Key Points to Remember

Exam-Specific Tips

Mixed DI (2-graph sets) — Practice Questions

60-Second Revision — Mixed DI (2-graph sets)