# Mathematics Quiz For RRB NTPC : 2nd December

Q1. What is the ratio between the volumes of a cylinder and cone of the same height and of the same diameter
(a) 2:1
(b) 3:1
(c) 4:1
(d) 5:1

Q2. At what rate of compound interest per annum will a sum of Rs.1200 become Rs.1348.32 in 2 years?
(a) 6%
(b) 6.5%
(c)7%
(d) 7.5%

Q3. How much will be the compound interest to be paid on a principal amount of Rs 85,000/- after 3 years at the rate of 6 p.c.p.a?
(a) Rs 16623.36/-
(b) Rs 16236.36/-
(c) Rs 16326.36/-
(d) Rs 16632.36/-

Q4.A sector of 120 degrees, cut out from a circle, has an area of 66/7 sq cm. Find the radius of the circle.
(a) 1cm
(b) 2cm
(c) 3cm
(d) 4cm

Q5. Sachin is younger than Rahul by 7 years. If the ratio of their ages is 7:9, find the age of Sachin
A.23.5
B.24.5
C.12.5
D.14.5

Q6. A man buys some articles at Rs. P per dozen and sells them at Rs. P/8 per piece. His profit per cent is
(1) 30
(2) 40
(3) 50
(4) 60

Q7.A single discount equivalent to three successive discounts of 5%, 10%, 20% is :
(a) 68. 4%
(b) 35%
(c) 31.6%
(d) 32%

Q8.On selling an article for Rs. 240, a trader loses 4%. In order to gain 10% he must sell that article for :
(a) Rs. 275
(b)Rs. 340
(c) Rs. 320
(d) Rs.264

Q9.The H.C.F and L.C.M of two numbers are 8 and 48 respectively. If one of the numbers is 24, then the other number is
(1)48
(2)36
(3)24
(4)16

Q10.In a triangle, the angles are in the ratio 2 : 5 : 3. What is the value of the least angle in the radian?
(a) π/20
(b) π/10
(c)2π/5
(d) π/5

Solutions:

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