18
Q:

# The product of three consecutive even numbers when divided by 8 is 720. The product of their square roots is :

 A) 12 sqrt(10) B) 24 sqrt(10) C) 120 D) none of these

Answer:   B) 24 sqrt(10)

Explanation:

Let the numbers be x, x + 2 and X + 4.

Then, x(x + 2)(x +4) / 8 = 720 => x(x + 2)(x +4) = 5760.

√x  *  √(x + 2) * √(x +4) = √x(x +2)(x + 4 ) = √5760  =  24√10.

Q:

10 Consecutive numbers are given. If the average of the two numbers given in the middle is 13.5, then what is the sum of the first 6 numbers?

 A) 65 B)  59 C) 69 D) 80

Explanation:

1 220
Q:

1.1 + 12.12 + 123.123 = ?

 A) 134.343 B) 133.433 C) 132.123 D) 136.343

Explanation:

1 164
Q:

Which of the following is in ascending order?

 A) 2/3, 3/4, 4/5, 1/2 B) 3/4, 4/5, 1/2, 2/3 C) 1/2, 2/3, 3/4, 4/5 D) 4/5, 1/2, 2/3, 3/4

Answer & Explanation Answer: C) 1/2, 2/3, 3/4, 4/5

Explanation:

0 194
Q:

Find the least number to be added to 1739 so that it is exactly divisible by 11.

 A) 11 B) 2 C) 1 D) 10

Explanation:

0 280
Q:

Which instrument is used for viewing the sun?

 A) Stroboscope B) Telescope C) Helioscope D) Sun meter

Explanation:

0 178
Q:

Which of the following is the least of all?

 A) 0.5 B) 1/0.5 C) 0.5 * 0.5 D) 0.5 * 2

Answer & Explanation Answer: C) 0.5 * 0.5

Explanation:

0 165
Q:

If the sum of digits is 9 and the difference between the digit in the ten's place and unit's place is 1, then the two-digit number is?

 A) 45 B) 63 C) 54 D) 72

Explanation:

0 201
Q:

Which of the following numbers is composite?

 A) 47 B) 57 C) 37 D) 67