2. A dealer sold a Radio at a loss of 2.5%. Had he sold it for Rs. 100 more, he would have gained 7.5%. To gain 12.5% he should sell it for :

A. Rs 2200 B. Rs 1000 C. Rs 1100 D. Rs 1125

Answer Answer: Option D Explanation: Let C.P be Rs.x then,(107.5 % of x) – (97.5 % of x) = 100
=> 10% of x = 100
=> x =1000
∴ desired S.P = 112.5 % of Rs. 100
= Rs.(225/2 x 1/100 x 1000) =Rs. 1125

3. If selling price is doubled, the profit triples. Find the profit percent?

A. 100% B. 116.67% C. 200% D. 300%

Answer Answer: Option A Explanation: Let C.P. be Rs. x and S.P. be Rs. y.
Then, 3(y - x) = (2y - x) y = 2x.
Profit = Rs. (y - x) = Rs. (2x - x) = Rs. x.
So profit % =100%

4. A man buys two horses for Rs. 1550. He sells one so as to lose 23% and other so as to gain 27%. On the whole transaction he neither gains nor loses. What does each horse costs?

A. 807,743 B. 817,733 C. 827,723 D. 837,713

Answer Answer: Option D Explanation: Let CP of one be X and other be Y
X+Y = 1550….(i)
ATQ:-
0.77X + 1.27Y = 1550…(ii) (as no profit and no loss is there)
Solving both, we get
50Y = 35650 or Y = 713
Hence, X = 1550-713 = 837
Therefore, CP of each horse = 837,713

5. Jagdeep bought a refrigerator with 20% discount on the labeled price. Had he bought at it with 30% discount, he would have saved Rs. 500 more. At what price did he buy the refrigerator?

A. Rs 5000 B. Rs 10,000 C. Rs 12,500 D. Rs 15,000

Answer Answer: Option A Explanation: Let the labelled price be Rs.x Then,
(80% of x)- (70% of x) = 500
10% of x =500
10%………..500
100%…………? ?= (500 x 100/10) = 5000=x