Maths Practice Question and Answer
8Q: The average age of a man and his son is 29 years. The ratio of their ages 4 years ago was 21:4 respectively. What is the present age of the son? 1893 05d0c999b0cbb1019f52481ec
5d0c999b0cbb1019f52481ec- 112 Yearstrue
- 28 Yearsfalse
- 310 Yearsfalse
- 414 Yearsfalse
- 5None of thesefalse
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Answer : 1. "12 Years"
Q: The height of a light house is 20 meters above sea level. The angle of depression (from the top of the lighthouse) of a ship in the sea is 30°. What is the distance of the ship from the foot of the light house?
1893 0606d78f36a85553684e1c486
606d78f36a85553684e1c486- 116 mfalse
- 220√ 3 mtrue
- 320 mfalse
- 430 mfalse
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Answer : 2. "20√ 3 m"
Q: Ram saves 14 % of his salary while Shyam saves 22 % . If both get the same salary and Shyam saves 1540, what is the savings of Ram?
1892 05ef48131f2ebd073795cbe83
5ef48131f2ebd073795cbe83- 1₹ 890false
- 2₹ 880false
- 3₹ 990false
- 4₹ 980true
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Answer : 4. "₹ 980 "
Q: A sum of money triples itself in 8 years simple interest. Find the rate of percent per annum? 1892 15b5cc6bee4d2b4197774d9a1
5b5cc6bee4d2b4197774d9a1- 130%false
- 225%true
- 322%false
- 418%false
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Answer : 2. "25%"
Q: What value will come in the place of question mark in the following number series?
5 9 36 208 1398 ?
1890 05e90014ace0a3938e2c789b3
5e90014ace0a3938e2c789b35 9 36 208 1398 ?
- 111342false
- 211472true
- 311274false
- 411674false
- 511562false
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Answer : 2. "11472 "
Q: If x+y=14: x3+y3=1064, then the value of (x-y)2 is:
1890 05ffc2c736557c73c86cd3d2c
5ffc2c736557c73c86cd3d2c- 181false
- 236true
- 3100false
- 464false
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Answer : 2. "36"
Q: Two equal sum were lent out at 7% and 5% S.I respectively. The interest earned on the two loans add up to ₹960 for 4 years. The total sum lent out is
1890 05dd635e7db51363c023948b4
5dd635e7db51363c023948b4- 1₹ 3500false
- 2₹ 2500false
- 3₹ 2000true
- 4₹ 3000false
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Answer : 3. "₹ 2000 "
Q: For an edition of 12,500 copies, the amount of Royalty paid by the publisher is Rs. 2,18,250. What should be the selling price of the book if the publisher desires a profit of 5%?
1889 05d70c47160d0a53645a479a0
5d70c47160d0a53645a479a0
- 1Rs. 152.50false
- 2Rs. 157.50true
- 3Rs. 162.50false
- 4Rs. 167.50false
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Answer : 2. "Rs. 157.50"
Explanation :
Clearly, S.P. of the book = 105% of C.P.
Let the selling price of this edition (of 12500 books) be Rs. x.
Then, 15 : 105 = 281250 : x ⇒ x = Rs. 
= Rs. 1968750.
⸫ S.P of one book = Rs. 
= Rs. 157.50