Maths Series Questions with Answers
Mathematical Series Questions for Competitive Exams
Q. If a sum of money placed at compound interest, compounded annually, doubles itself in 5 years, then the same amount of money will be 8 times of itself in-
a. 25 years
b. 20 years
c. 15 years
d. 10 years
Q. A person has left an amount of Rs.1,20,000 to be divided between his 2 son aged 14 years and 12 years such that they get equal amounts when each attains 18 years of age. If the amount gets a simple interest of 5% per annum, the younger son’s share at present is-
a. Rs.48,800
b. Rs.57,600
c. Rs.62,400
d. Rs.84,400
Q. If the simple interest on Rs.x at a rate of a% for m years is same as that on Rs. y at a rate of a2% for m2 years, then x : y is equal to-
a. m : a
b. am : 1
c. 1/m : 1/a
d. 1/am : 1
Q. Base of a right prism is an equilateral triangle of side 6 cm. If the volume of the prism is 108?3 cc, its height is-
a. 9 cm
b. 10 cm
c. 11 cm
d. 12 cm
Q. If a + 1/a + 2 = 0, then the value of (a37 – 1/a100) is-
a. 0
b. -2
c. 1
d. 2
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Vikram Singh
Providing knowledgable questions of Reasoning and Aptitude for the competitive exams.
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