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CDS || Mathematics Revision Quiz || 07-04-2019

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Question 1

If (x/a) + (y/b) = 3 and (x/b) – (y/a) = 9, then what is the value of x/y?

Question 2

is divisible by

Question 3

For which value of a and b will the following two equation have infinitely many solution,
4x + 5y – 2 = 0 and (2a + 7b)x + (a + 8b)y – 2b + a – 1 = 0

Question 4

If cos 4π/3 = x, then the value of x is

Question 5

then value of x is

Question 6

What is the simplified value of

Question 7

Two trains of lengths 70 m and 80 m are running at speeds of 68 km/hr and 40 km/hr respectively on paralleled tracks in opposite directions. in how many second will they pass each other?

Question 8

In an examination, 93% of students passed and 259 failed. The total number of students appearing at the examination was

Question 9

Nishanth builds a lego tower of dimensions 25 cm

60 cm

2 m with lego bricks each measuring 10 cm

5 cm

3 cm. How many blocks is needed to complete the tower.

Question 10

The diameter of a wheel is 98 cm. The number of revolutions in which it will have to cover a distance of 1540 m is

Question 11

In ∆ABC,

ABC=70 º,

BCA=40^o, O is the point of intersection of the perpendicular bisectors of the sides, then the angle

BOC is

Question 12

Two circles touch each other externally at a point P and a direct common tangent touches the circles at the points Q and R respectively. Then

QPR is

Question 13

Which one of the following is not correct?
The proportion of various items in a pie diagram is proportional to the

Question 14

The class which has maximum frequency is known as

Question 15

What measure of central tendency can have more than one value?

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CDS & Defence Elementary Mathematics

May 5CDS & Defence