14
Q:

# The sum of the squares of two numbers is 3341 and the diference of their squares is 891. The numbers are :

 A) 35 and 46 B) 35 and 50 C) 40 and 55 D) 45 and 60

Explanation:

Let the numbers be x and y. Then,

x^2+y^2=3341......(1)

x^2-y^2=891......(2)

Adding (i) and (ii), we get : 2x^2=4232 or x^2= 2116 or x =46

Subtracting (ii) from (i), we get : 2y^2= 2450 or y^2 = 1225 or y = 35

So, the numbers are 35 and 46

Q:

The coefficient of x in

 A) 3y2 B) 27y2 C) -27y2 D) -3y2

Explanation:

3 5593
Q:

The largest number which should replace * in the number 2365*4 to make the number divisible by 4 is:

 A) 9 B) 2 C) 0 D) 8

Explanation:

1 9259
Q:

$43÷16×2-1=?$

 A) 3 B) -2 C) 8 D) 15

Explanation:

1 1006
Q:

If

 A) 110 B) 10 C) 80 D) 140

Explanation:

1 5115
Q:

Sum of four consecutive odd numbers is 328. Find the largest number.

 A) 85 B) 98 C) 79 D) 97

Explanation:

0 4581
Q:

What is the smallest integer that is divisible by 3, 7 and 18?

 A) 63 B) 252 C) 72 D) 126

Explanation:

1 5577
Q:

If the mean of the numbers 27 + x, 31 + x, 89 + x, 107 + x and 156 + x is 82.then the mean of 130 + x, 126 x, 68 + x, 50 + x 1 + x is :

 A) 80 B) 75 C) 50 D) 70

Explanation:

0 650
Q:

Arrange the following in the decreasing order?

(√23 – √21), (√19 – √17), (√21 – √19)

 A) (√23 – √21) > (√21 – √19) > (√19 – √17) B) (√23 – √21) > (√19 – √17) > (√21 – √19) C) (√19 – √17) > (√21 – √19) > (√23 – √21) D) (√21 – √19) > (√23 – √21) > (√19 – √17)

Answer & Explanation Answer: C) (√19 – √17) > (√21 – √19) > (√23 – √21)

Explanation: