Ratio and Proportion Practice Question and Answer
8 Q: The ratio of the present ages of A and B is 16:7. After 12 years, A’s age is twice B’s age then find the present ages of A and B.
974 064d4baa2d02c5c746bdc5b5a
64d4baa2d02c5c746bdc5b5a- 164yr; 28yrfalse
- 280yr; 35yrfalse
- 3None of thesefalse
- 496yr; 42 yrtrue
- 5102yr; 49yrfalse
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Answer : 4. "96yr; 42 yr"
Q: A, B and C did certain investments and the ratio of their time periods is 3 : 2 : 7respectively. Ratio of the profits of A, B and C is 4 : 3 : 14 respectively. What is the ratio of the investments of A, B and C?
968 06492d3b1dad6f2e01f55c4e4
6492d3b1dad6f2e01f55c4e4- 11:3:4false
- 27:9:11false
- 38:9:12true
- 42:3:11false
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Answer : 3. "8:9:12"
Q: The ratio of the monthly incomes of A and B is 11 : 13 and the ratio of their expenditures is 9 : 11. If both of them manage to save ₹4,000 per month, then find the difference in their incomes (in ₹).
953 0646dd60883ab324a7067fa3a
646dd60883ab324a7067fa3a- 12,500false
- 24,000true
- 33,200false
- 43,000false
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Answer : 2. "4,000"
Q: Find two such numbers whose middle proportional is 18 and third proportional is 144.
945 06319b301b0a2a82fc54c0c57
6319b301b0a2a82fc54c0c57- 16 and 42false
- 29 and 36true
- 33 and 18false
- 46 and 12false
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Answer : 2. "9 and 36"
Q: The average of two numbers is 62. If 2 is added to the smaller number, the ratio of the numbers becomes 1 : 2. What is the difference between numbers?
941 06321b9a83169cb1b1567f73b
6321b9a83169cb1b1567f73b- 162false
- 240false
- 384false
- 444true
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Answer : 4. "44"
Q: If $$ {x\over y}={y\over w}$$ then what is the value of (xy+zw).
940 060112bb5e8a52d24905e8e3c
60112bb5e8a52d24905e8e3c- 1$$ {(x^{2}+z^{2})(y^{2}+w^{2})}$$true
- 2$${(x^{2}{y^{2}+z^{2}w^{2}})}$$false
- 3$${(x^{2}{w^{2}+y^{2}z^{2}})}$$false
- 4$$ {(x^{2}+w^{2})(y^{2}+z^{2})}$$false
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Answer : 1. "$$ {(x^{2}+z^{2})(y^{2}+w^{2})}$$"
Q: The cost of printing a book increased from Rs. 96 to Rs. 120 from the year 2013 to 2018, such that the total money spent on printing books by a printing press increased in the ratio 5 ∶ 6. If the printing press printed 200 books in the year 2013, how many books did they print in the year 2018?
939 064f1e89618913c5bfc72e877
64f1e89618913c5bfc72e877- 1176false
- 2192true
- 3216false
- 4252false
- 5223false
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Answer : 2. " 192"
Q: Average present ages of A, B and C is 25 years. The ratio of the present ages of B and C is 4:5. After 6 years, the ratio will be B and C is 5:6, then what is the present age of A?
937 062f368cc3342ab118438d5e2
62f368cc3342ab118438d5e2- 121 yearstrue
- 223 yearsfalse
- 324 yearsfalse
- 418 yearsfalse
- 5None of thesefalse
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