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- Question
What is the length of the arc whose central angle is 30° and radius of the circle is 21 cm?
Options- A. 22 cm
- B. 16.5 cm
- C. 11 cm
- D. 28 cm
- Correct Answer
- 11 cm
- 1. What is the difference (in Rs) between the compound interests on Rs. 1000 for 1 year at 10% per annum compounded yearly and half-yearly?
Options- A. 1.5
- B. 0.5
- C. 2.5
- D. 3.5 Discuss
- 2. A 300m race is held between two players running 3m/s and 5m/s in swimming pool of 50m long. how many times the two player meet in opposite direction till the faster one completes the race ?
Options- A. 3 times
- B. 4 times
- C. 5 times
- D. 2 times Discuss
- 3. If the amount received at the end of 2nd and 3rd year at compound interest on a certain Principal is Rs 30250, and Rs 33275 respectively, what is the rate of interest?
Options- A. 10 percent
- B. 5 percent
- C. 20 percent
- D. 16 percent Discuss
- 4. What is the least number that when divided by 63 and 105 leaves remainder 4 in each case?
Options- A. 634
- B. 256
- C. 214
- D. 319 Discuss
- 5. A man wears socks of two colours - Black and White. He has altogether 30 black socks and 10 brown socks in a drawer. Supposing he has to take out the socks in the dark, how many must he take out to be sure that he has a matching pair ?
Options- A. 3
- B. 4
- C. 5
- D. 2 Discuss
- 6. A sum of Rs. 2000 amounts to Rs. 4000 in two years at compound interest. In how many years does the same amount becomes Rs. 8000.
Options- A. 2
- B. 4
- C. 6
- D. 8 Discuss
- 7. Find two numbers whose sum is 29 and the product is 100.
Options- A. 20, 5
- B. 20, 9
- C. 25, 4
- D. 10, 10 Discuss
- 8. Directions: Seven different boxes A, B, C, D, E, F and G of different colours viz., Orange, Pink, Purple, Yellow, Blue, Red and Green are arranged one above the other. The box at the bottom of arrangement is numbered 1, the above box is numbered 2 and so on. B is immediately above E. More than two boxes are above the Orange box. The Yellow box is immediately below A. Only one box is between the Orange box and F. G is immediately above the Red box. Only one box is between B and the Pink box. Only two boxes are between the Pink and the Green box. Only two boxes are between the Yellow box and the Orange box. The Purple box is neither at the top nor at the bottom of the arrangement.B is above Pink box. C is immediately above F. Neither C nor G is a Yellow box. G is not a Orange box. Question: Which combination represents the position of C and its colour?
Options- A. 6-Green
- B. 6-Red
- C. 5-Purple
- D. 7-Blue Discuss
- 9. In how many years will Rs 25,000 yield Rs 8,275 as compound interest at 10% per annum compounded annually?
Options- A. 2
- B. 4
- C. 3
- D. 5 Discuss
- 10. Product of digits of a 2-digit number is 72. If we add 9 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.
Options- A. 98
- B. 89
- C. 78
- D. 87 Discuss
More questions
Correct Answer: 2.5
Correct Answer: 3 times
Explanation:
Let us assume A is the faster and B is slower, A takes 10s to finish a lap of 50 m, B takes 17s(approx) to finish a lap of 50 m.
So at 11th sec A starts his 2nd lap by the time B will be in between so that is the first time they will meet each other, at 21st sec A starts his 3rd lap by the time B will be coming back to finish his 2nd lap. So that is the second time they meet in opposite. Then at 31st sec A will start his 4th lap by the time B would not even finish 2nd lap as he take 34(2*17) sec to finish 2 laps. So at 35th sec B will start his 3rd lap by the time A will be coming back to finish his 4th lap in the half way so they will meet 3rd time. At 41st sec A will start its fifth lap by the time B will be going to finish 3rd lap in same direction. At 50th second both will complete A's 5th lap and B's 3rd lap. So they will start next lap(A's 6th and B's 4th) from the same point in same direction. And A will finish the race after completing 300m(6*50) total distance and then they wont meet opposite to each other.
So totally they met 3 times in opposite direction.
Correct Answer: 10 percent
Correct Answer: 319
Correct Answer: 3
Explanation:
Given there are 2 coloured socks, which is black and White
Let suppose 3 is choosen at random
then three conditions arises
1. all are black
2.all are white
3. either it will have 2 black and 1 white or it will have 2 white and 1 black
so in all the conditions as above mentioned we are getting atleast one pair of socks.
So, he must take out 3 to be sure that he has a matching pair.
Correct Answer: 4
Correct Answer: 25, 4
Correct Answer: 7-Blue
Explanation:
From the given information the arrangement can be done as follows:
Position Box Colour
7 C Blue
6 F Green
5 B Purple
4 E Orange
3 G Pink
2 A Red
1 D Yellow
Correct Answer: 3
Correct Answer: 89
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