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A sells an article to B at a profit of 20%. B sells it to C at a profit of 4%. What does it cost for A, if C has paid Rs 624?

ARs 600
BRs 580
CRs 500
DRs 510

Read the statements carefully and select the correct option.
Statement-I : While dividing a whole number by a fraction, we divide the whole number with the reciprocal of that fraction.
Statement-II : The product of a proper and an improper fraction is greater than both the improper fraction and the proper fraction.

ABoth Statement-I and Statement-II are true.
BBoth Statement-I and Statement-II are false.
CStatement-I is true but Statement-II is false.
DStatement -I is false but Statement-II is true.

There are 255 boxes of different sizes large, medium and small. These boxes are in the ratio 2 : 8 : 5. Find the number of medium size boxes.

A85
B136
C192
D115

((2 × 5)²)² is not equal to which of the following options?

A10⁹ × 0.0001
B0.1 × 10⁵
C10 × 10 × 10 × 10
D10² × 10²

The given table shows the areas in square kilometres of some countries.

What is the difference between the areas (in square kilometres) of the largest and the smallest country?

A16,855,842
B7,500,148
C9,742,270
D13,810,979

Mohan brushes his teeth thrice a day. How many times does he brush his teeth in a leap year?

A365
B730
C1095
D1098

For calculation of interest compounded half yearly, keeping the principal same, which of the following statements is true?

ADouble the given annual rate and half the given number of years.
BDouble the given annual rate as well as the given number of years.
CHalf the given annual rate and double the given number of years.
DHalf the given annual rate as well as the given number of years.

A circular piece of paper of radius 20 cm is trimmed into the shape of the biggest possible square. Find the area of the paper cut off.


A
B800 cm²
C
D

The algebraic sum of the deviations of a frequency distribution from its mean is _____.

A Always positive
B Always negative
C 0
D A non-zero number

In the given figure O and O₂ are the centre of the bigger circle of radius 3 cm and the smaller circle of radius 1.5 cm respectively and O₁ is the centre of the semi-circle of radius 1 cm, all lying on diameter AB. Find the area of shaded region.


A92/7 cm²
B88/7 cm²
C89/21 cm²
D18/7 cm²