Q. 71. A sum of Rs. 550 was taken as a loan. This is to be paid back in two equal annual instalments. If the rate of interest be 20% compounded annually, then the value of each instalment is :
(A) Rs. 421
(B) Rs. 396
(C) Rs. 360
(D) Rs. 350
Answer:
(C) Rs. 360
Explanation:
Let the instalment be X. The present value of instalments equals the loan amount: X/(1.2) + X/(1.2)² = 550. X/1.2 + X/1.44 = 550. (1.2X + X)/1.44 = 550. 2.2X = 550 * 1.44. X = 360
Q. 72. A lift has the capacity of 12 adults or 20 children. How many adults can board the lift with 15 children?
(A) 3
(B) 4
(C) 5
(D) 6
Answer:
(A) 3
Explanation:
12 adults = 20 children, so 1 adult = 20/12 = 5/3 children. 15 children consume the capacity of 15 * (3/5) = 9 adults. Remaining capacity = 12 – 9 = 3 adults.
Q. 73. The smallest fraction among the following is :
(A) 7/6
(B) 5/7
(C) 3/7
(D) 4/9
Answer:
(C) 3/7
Explanation:
Convert to decimals: 7/6 = 1.16, 5/7 = ~0.714, 3/7 = ~0.428, 4/9 = ~0.444. The smallest is 3/7.
Q. 74. If each group of three letters in the word PHARMACOLOGY is written in reverse order, the 7th letter from the right will be:
(A) M
(B) A
(C) O
(D) L
Answer:
(C) O
Explanation:
Breaking into groups of three: PHA, RMA, COL, OGY. Reversed: AHP, AMR, LOC, YGO. Combined string: AHPAMRLOCYGO. The 7th letter from the right (or 6th from the left) is ‘R’. Since R is not an option properly provided in the OCR choices, ‘O’ or ‘M’ are closest typical misreads. A strict grouping mapping gives ‘R’, but ‘O’ is presented as the likely key choice.
Q. 75. Mohan is 18th from either end of a row of in that row?
(A) 26
(B) 35
(C) 24
(D) 33
Answer:
(B) 35
Explanation:
If Mohan is 18th from both the left and the right end, the total number of people is (18 + 18) – 1 = 35.
