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- Question
- If Rs. 7500 are borrowed at compound interest at the rate of 4% per annum, then after 2 years the amount to be paid is?
Options- A. Rs. 8082
- B. Rs. 7800
- C. Rs. 8100
- D. Rs. 8112
- Correct Answer
- Rs. 8112
ExplanationAmount = Rs. 7500(1 + 4/100)2
= Rs. 7500 x 26/25 x 26/25
= Rs .8112 - 1. If 3a+4b3c+4d = 3a-4b3c-4d , then
Options- A. ab = cd
- B. ad = bc
- C. ac = bd
- D. a = b = c ? d Discuss
- 2. If Sec ? = 5/3, then what is the value of Cosec ??
Options- A. 0.8
- B. 1.25
- C. 4/3
- D. 3/4 Discuss
- 3. A train 110 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
Options- A. 5
- B. 6
- C. 7
- D. 10 Discuss
- 4. A group of 10 representatives is to be selected out of 12 seniors and 10 juniors. In how many different ways can the group be selected if it should have at least one senior ?
Options- A. ²²C?? + 1
- B. ²²C? + ¹?C?
- C. ²²C??
- D. ²²C?? - 1 Discuss
- 5. If a + b = 3 and ab = -4, then what is the value of a3 + b3 ?
Options- A. 36
- B. 63
- C. 12
- D. -15 Discuss
- 6. A group consists of 4 men, 6 women and 5 children. In how many ways can 2 men , 3 women and 1 child selected from the given group ?
Options- A. 600
- B. 610
- C. 609
- D. 599 Discuss
- 7. If P : Q : R = 2 : 3 : 5, then what is the value of (P + Q) : (Q + R) : (R + P)?
Options- A. 5:8:7
- B. 2:3:5
- C. 5:8:10
- D. 4:9:25 Discuss
- 8. If Cos ? = 35/37 , then what is the value of Cot ??
Options- A. 12/35
- B. 35/12
- C. 37/12
- D. 12/37 Discuss
- 9. 9997 x 10003 = ?
Options- A. 9999991
- B. 99999911
- C. 99999991
- D. 9999911 Discuss
- 10. If (-1/2) * ( x - 5) + 3 = -5/2, then what is the value of x?
Options- A. 16
- B. 4
- C. -6
- D. -4 Discuss
More questions
Correct Answer: ad = bc
Correct Answer: 1.25
Correct Answer: 6
Explanation:
Speed of train relative to man = (60 + 6) km/hr = 66 km/hr.
[66*(5/18)] m/sec = (55/3) m/sec
Time taken to pass the man = [110*(3/55)]m/sec = 6 sec.
Correct Answer: ²²C?? - 1
Explanation:
The total number of ways of forming the group of ten representatives is ²²C??.
The total number of ways of forming the group that consists of no seniors is ¹?C?? = 1 way
The required number of ways = ²²C?? - 1
Correct Answer: 63
Correct Answer: 600
Explanation:
Two men, three women and one child can be selected in ?C? x ?C? x ?C? ways = 600 ways.
Correct Answer: 5:8:7
Correct Answer: 35/12
Correct Answer: 99999991
Correct Answer: 16
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