Directions: Study the pie charts given below and answer the following questions.

The Total Cost Involved in manufacturing a car = Rs. 100000

Question 1: What was the cost of engine?
(a) Rs. 50000
(b) Rs. 60000
(c) Rs. 20000
(d) Rs. 30000

Question 2: What is the cost of Gear Box?
(a) Rs. 9000
(b) Rs. 6000
(c) Rs. 3000
(d) Rs. 15000

Question 3: What percentage of total cost is contributed by the brake?
(a) 55%
(b) 6.6%
(c) 6%
(d) 5.4%

Question 4: If the price of tyres goes up by 25%, by what amount should be the sale price be increased to maintain the amount of profit?
(a) Rs. 750
(b) Rs. 2250
(c) Rs. 3750
(d) Rs 375

Question 5: If transmission cost increases by 20%, by what amount is the profit reduced (total selling price of car remains same)?
(a) Rs. 3000
(b) Rs. 4000
(e) Rs. 6000
(d) Cannot be determined

Question 6: What is the profit percentage?
(a) 10%
(b) 9.09%
(c) 11.11%
(d) Cannot be determined

Question 7: What percentage of cost price is contributed by clutch?
(a) 6%
(b) 2%
(c) 3%
(d) Cannot be determined

Question 8: If transmission cost increases by 10% and Engine cost increases by 20%, what is the percentage contribution of transmission to the cost?
(a) 20%
(b) 20.37%
(c) 21.86%
(d) 21.98%

Answers and Explanations

Answer 1: (d)

The engine costs 30% of 100000 = Rs30000

The correct option is (d)

Answer 2: (c)

The cost of gear box = 15/100 x 20/100 x 100000 = Rs. 3000

The correct option is (c)

Answer 3: (c)

If the total cost is Rs 100, then the cost of Transmission is Rs 20 and of brakes = 30% of 20 = Rs 6

Hence, brakes constitute 6% of the total cost.

The correct option is (c)

Answer 4: (a)

Cost of the tyre = 15/100 x 20/100 x 100000 = Rs. 3000

If the cost is increased by 25% the price should be increased by ¼ x 3000 = Rs. 750

The correct option is (a).

Answer 5: (b)

The transmission cost is 20% of Rs 100000 = Rs 20000

If the transmission cost is increased by 20% then the new cost will be 20000 × 1.2 = Rs 24000

As the selling price of the car is same as before, so the profit will reduce by 24000 – 20000 = Rs 4000

The correct option is (b)

Answer 6: (d)

The total cost of car to manufacturer is given to be Rs 100000 but the selling price is not given.

Hence,the profit percentage cannot be determined.

Answer 7: (a)

The cost of clutch is 30/100 x 20/100 x 100000 = Rs. 6000

Hence, the required percentage = (6000/100000) x 100 = 6%

Correct option is (a).

Answer 8: (b)

The transmission cost is 20% of 100000 = Rs 20000

The cost of engine = 30% of 100000 = Rs 30000

Now the transmission cost increases by 10%, so new transmission cost = Rs 22000

and similarly, the new engine cost is Rs 36000

Total increase in the cost of car = 2000 + 6000 = Rs 8000

Hence, the new cost of car = Rs 108000

The required percentage = (22000/108000) x 100 = 20.37%

The correct option is (b)

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