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Q:

# What is the compound interest earned at the end of 3 years?I. Simple interest earned on that amount at the same rate and for the same period is Rs. 4500.II.The rate of interest is 10 p.c.p.a.III.Compound interest for 3 years is more than the simple interest for that period by Rs.465.

 A) I and II only B) II and III only C) I and III only D) Either II or III only

Answer:   D) Either II or III only

Explanation:

I. gives, S.I for 3 years = Rs. 4500.

II. gives, Rate = 10% p.a.

III. gives, (C.I.) - (S.I.) = Rs. 465.

Clearly, using I and III we get C.I. = Rs. (465 + 4500).

Thus, II is redundant.

Also, from I and II, we get sum =

100 x 4500

= 15000.

10 x 3

Now C.I. on Rs. 15000 at 10% p.a. for 3 years may be obtained.

Thus, III is redundant.

Either II or III is redundant.

Q:

Select the odd word/letters/number/number pair from the given alternatives.

 A) 81 B) 125 C) 64 D) 198

Explanation:

1 337
Q:

Expand and simplify

 A) 13x3 + 92x2 -­ 55x + 4 B) 13x3 -­ 92x2 -­ 55x -­ 4 C) 13x3 + 92x2 + 55x -­ 4 D) 13x3 -­ 92x2 + 55x + 4

Answer & Explanation Answer: C) 13x3 + 92x2 + 55x -­ 4

Explanation:

0 288
Q:

A cone is hollowed out of a solid wooden cube of side 7 cm. The diameter and height of the cone is same as the side of the cube. What is the volume of the remaining cube?

 A) 253.17 cubic cms B) 228.84 cubic cms C) 143.26 cubic cms D) 257.68 cubic cms

Explanation:

0 269
Q:

Reflection of the point (2,-4) in the origin is

 A) (2,4) B) (-2,-4) C) (2,-4) D) (-2,4)

Explanation:

1 332
Q:

By increasing the price of entry ticket to a fair in the ratio 5:7, the number of visitors to the fair has decreased in the ratio 11:9. In what ratio has the total collection increased or decreased?

 A) increased in the ratio 55:63 B) decreased in the ratio 63:55 C) increased in the ratio 45:77 D) decreased in the ratio 77:45

Explanation:

0 382
Q:

Asif is twice as good as workman as Bashir and together they finish a piece of work in 30 days. In how many days will Asif alone finish the work?

 A) 90 B) 45 C) 60 D) 75

Explanation:

0 392
Q:

What smallest number should be added to 2401 so that the sum is completely divisible by 14 ?

 A) 8 B) 7 C) 4 D) 5

Explanation:

1 420
Q:

What is the altitude of an equilateral triangle whose side is 12 cm?

 A) 6√3 cm B) 3√3 cm C) 6√2 cm D) 4√2 cm