Ques 281 : Choose the correct answer.

What is the highest power of 82 contained in 83!-82! ?

**Option 1 : 3**

Option 2 : 2

Option 3 : 164

Option 4 : None of these

Ques 282 : Choose the correct answer.

If x = 0.75, then what is the value of the expression (1+x+x2) + x3/(1-x) ?

Option 1 : 0.25

**Option 2 : 4**

Option 3 : 1.75

Option 4 : 1

Ques 283 : Choose the correct answer.

If a lies between 2 and 3, both included, and b lies between 4 and 6, both included, then what is the ratio of minimum and maximum limits of a2-b2?

Option 1 : -4

Option 2 : 4

**Option 3 : 32/7**

Option 4 : – 28/6

Ques 284 : Choose the correct answer.

If a, b, c are roots of the equation 1×3-4×2+6.5x + 3.5 = 0, then what is the value of a2 + b2 + c2?

Option 1 : 1

Option 2 : 64

Option 3 : 169

**Option 4 : 3**

Ques 285 : Choose the correct answer.

If |x| + |y| = 7, then what is the sum of minimum and maximum values of x + y?

Option 1 : 3/2

Option 2 : -7

Option 3 : 7

**Option 4 : 0**

Ques 286 : Choose the correct answer.

832.58-242.31 =779.84- ?

Option 1 : 179.57

Option 2 : 199.57

Option 3 : 295.05

**Option 4 : None of these**

Ques 287 : Choose the correct answer.

Which is the closest approximation to the product 0.3333 * 0.25 * 0.499 * 0.125 * 24 ?

**Option 1 : 1/8**

Option 2 : 3/4

Option 3 : 3/8

Option 4 : 2/5

Ques 288 : Choose the correct answer.

The simplification of (0.2 * 0.2 + 0.02 * 0.02 – 0.4 * 0.02) / 0.36

Option 1 : 0.009

**Option 2 : 0.09**

Option 3 : 0.9

Option 4 : 9

Ques 289 : Choose the correct answer.

If 13 + 23+ 33+ ……….+ 93 = 2025 ,then the value of (0.11)3 + (0.22)3 + ….+ (0.99)3 is close to:

Option 1 : 0.2695

Option 2 : 0.3695

**Option 3 : 2.695**

Option 4 : 3.695

Ques 290 : Choose the correct answer.

In a purse there are 30 coins, twenty one-rupee and remaining 50-paise coins. Eleven coins are picked simultaneously at random and are placed in a box. If a coin is now picked from the box, find the probability of it being a rupee coin?

Option 1 : 4/7

Option 2 : 1/2

**Option 3 : 2/3**

Option 4 : 5/6