61
Q:

# If × means ÷,  - means ×,  ÷ means + and  + means- than (3 - 15 ÷ 19) × 8 + 6 = ?

 A) 8 B) 4 C) 2 D) -1

Explanation:

By the given data, we have  the expression :

(3 × 15 + 19) ÷ 8 - 6 = (45 + 19) ÷ 8 - 6 = 64 ÷ 8 - 6 = 8 - 6 = 2

Q:

In a cricket match, five batsmen P, Q, R, S and T scored an average of 36 runs. S Scored 5 more than T; T scored 8 fewer than P; Q scored as many as S and T combined; and Q and R scored 107 between them. How many runs did T score ?

 A) 20 B) 29 C) 28 D) 24

Explanation:

Let the runs scored by P, Q, R, S and T be  a, b, c, d and e

From given data,

a + b + c + d + e = 36 x 5 = 180
b + c = 107
Let a = x
e = x-8
d = x-3
now 3x - 11 + 107 = 180
3x = 84
x = 28
e's score = 28-8 = 20

2 10
Q:

The value of -4-(-10) is how much greater then the value of -10-(-4) ?

 A) 10 B) 6 C) 12 D) 0

Explanation:

-4-(-10) = -4+10 = 6

-10-(-4) = -10+4= -6

$\therefore$  6-(-6) = 6+6 = 12

6 70
Q:

A sum of Rs.1890 has to be used to give 9 prizes to the customers of a super market for their overall academic purchases. If each prize is Rs.30 less than its preceding price, what is the least value of the price ?

 A) 90 B) 95 C) 85 D) 80

Explanation:

Let the least value of the prize = Rs. x
Then the next value of the prize is x+30 , x+60, x+90, ....x+240.
Given total amount of cash prizes = Rs.1890
$\Rightarrow$ x + (x+30) + (x+60) + (x+90) + ....+ (x+240) = 1890
$\Rightarrow$   9x + (30 + 60 + 90 + 120 + 150 + 180 + 210 + 240) = 1890
$\Rightarrow$   9x + 30(1 + 2 + 3 + 4....+ 8) = 1890
$\Rightarrow$   9x + 30(36) = 1890
$\Rightarrow$  9x = 810 $\Rightarrow$ x=90
Hence the least value of the prize x=90

7 122
Q:

12:30 :: 14: ?

 A) 36 B) 28 C) 35 D) 42

Explanation:

Here 12 $\times$ 2.5 = 30

In the same way 14 $\times$ 2.5 = 35

11 211
Q:

In a group of buffaloes and ducks the number of legs are 24 more than twice the number of heads. What is the number of buffaloes in the group ?

 A) 6 B) 18 C) 12 D) 24

Explanation:

Let the number of buffaloes be x

and number of ducks be y.

Now, number of heads = x+y

Number of legs = 4x+2y  .......(1)

But given that legs = 2(x+y)+24 ......(2)

solving (1) & (2),we get

4x+2y=2x+2y+24 $\inline&space;\fn_jvn&space;\small&space;\Rightarrow$ 2y=24  $\inline&space;\fn_jvn&space;\small&space;\Rightarrow$y=12  $\inline&space;\fn_jvn&space;\small&space;\Rightarrow$ x=12.

Therefore number of buffaloes =12