10, 14, 16, 18, 21, 24, 26
Question:
10, 14, 16, 18, 21, 24, 26
[A].
26
24
21
18
10, 14, 16, 18, 21, 24, 26
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
Each of the numbers except 21 is an even number.
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Which one of the following can’t be the square of natural number ?
Question:
Which one of the following can’t be the square of natural number ?
[A].30976 [B].
75625 [C].
28561 [D].
143642 Answer: Option D
Explanation:
The square of a natural number nerver ends in 2.
143642 is not the square of natural number.
The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:
Question:
The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:
[A].9000 [B].
9400 [C].
9600 [D].
9800 Answer: Option C
Explanation:
Greatest number of 4-digits is 9999.
L.C.M. of 15, 25, 40 and 75 is 600.
On dividing 9999 by 600, the remainder is 399.
Required number (9999 – 399) = 9600.
What will be the day of the week 15th August, 2010?
Question:
What will be the day of the week 15th August, 2010?
[A].Sunday [B].
Monday [C].
Tuesday [D].
Friday Answer: Option A
Explanation:
15th August, 2010 = (2009 years + Period 1.1.2010 to 15.8.2010)
Odd days in 1600 years = 0
Odd days in 400 years = 0
9 years = (2 leap years + 7 ordinary years) = (2 x 2 + 7 x 1) = 11 odd days 4 odd days.
Jan. Feb. March April May June July Aug.
(31 + 28 + 31 + 30 + 31 + 30 + 31 + 15) = 227 days227 days = (32 weeks + 3 days) 3 odd days.
Total number of odd days = (0 + 0 + 4 + 3) = 7 0 odd days.
Given day is Sunday.
Simple Interest on a sum at 4% per annum for 2 years is 80. The compound interest on the same sum for the same period is_________?
Simple Interest on a sum at 4% per annum for 2 years is 80. The compound interest on the same sum for the same period is_________?A. Rs. 81.60
B. Rs. 160
C. Rs. 1081.60
D. None of these
Explanation:
Principle = Rs.(8000/8) = Rs. 1000
Therefore, C. I = Rs. [{ 1000 × (1 +4/100)2 – 1000}]
= Rs. 81.60A pupil’s marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half (1/2). The number of pupils in the class is:
Question: A pupil’s marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half (1/2). The number of pupils in the class is:
[A].10 [B].
20 [C].
40 [D].
73 Answer: Option C
Explanation:
Let there be x pupils in the class.
Total increase in marks = x x 1 = x 2 2 x = (83 – 63) x = 20 x= 40. 2 2 A sum of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs. 1000 more than D, what is B’s share?
Question:
A sum of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs. 1000 more than D, what is B’s share?
[A].Rs. 500 [B].
Rs. 1500 [C].
Rs. 2000 [D].
None of these Answer: Option C
Explanation:
Let the shares of A, B, C and D be Rs. 5x, Rs. 2x, Rs. 4x and Rs. 3x respectively.
Then, 4x – 3x = 1000
x = 1000.
B’s share = Rs. 2x = Rs. (2 x 1000) = Rs. 2000.