Percentage Practice Question and Answer
8 Q: 0.08% of 120% of 40,000 is equal to___.
1100 05f2a71cccef453383f1e60f0
5f2a71cccef453383f1e60f0- 1384false
- 238.4true
- 33.84false
- 40.384false
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Answer : 2. "38.4"
Q: If the population of a town is 12.000 and the population increases at the rate of 10% per annum, then find the population. after 3 years.
1095 06426e27c72ca731a990e28e2
6426e27c72ca731a990e28e2- 115,972true
- 212,200false
- 311,200false
- 410,200false
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Answer : 1. "15,972"
Explanation :
To find the population after 3 years given that it increases at a rate of 10% per annum, you can use the formula for exponential growth:
𝑃=𝑃0×(1+𝑟)𝑛P=P0×(1+r)n
Where:
- 𝑃P = Population after 𝑛n years
- 𝑃0P0 = Initial population
- 𝑟r = Rate of increase (in decimal form)
- 𝑛n = Number of years
Given:
- 𝑃0=12,000P0=12,000 (Initial population)
- 𝑟=0.10r=0.10 (10% increase per annum)
- 𝑛=3n=3 (Number of years)
Substitute these values into the formula:
𝑃=12,000×(1+0.10)3P=12,000×(1+0.10)3
𝑃=12,000×(1.10)3P=12,000×(1.10)3
𝑃=12,000×(1.331)P=12,000×(1.331)
𝑃=15,972P=15,972
So, the population after 3 years would be approximately 15,972.
Q: In a college 12% of all the students are interested in sports, 10% of the total students are interested in singing and three-fourth of the total students are interested in dancing and remaining 15 students are not interested in any activity, How many total students are there in the college?
1089 0631093297c72c07784689974
631093297c72c07784689974- 1450false
- 2500true
- 3600false
- 4None of thesefalse
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Answer : 2. "500"
Q: A person who spends
1088 05ee0d41f8c4c964f73d9980b
5ee0d41f8c4c964f73d9980b- 11,200false
- 22,400true
- 33,000false
- 43,200false
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Answer : 2. "2,400 "
Q: If A earns
1084 060632dcbcfdbf24a555faf55
60632dcbcfdbf24a555faf55- 120%false
- 212.5%false
- 325%true
- 437.5%false
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Answer : 3. "25%"
Q: A man earns a profit of 60% when he sells an article at 4/3 of the original selling price. Find the percent profit he makes at original price.
1083 0605a97158a26422fe255e144
605a97158a26422fe255e144- 116.6 percentfalse
- 214.8 percentfalse
- 315 percentfalse
- 420 percenttrue
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Answer : 4. "20 percent "
Q: The price of wheat is reduced by 4 % How many kilogram of wheat can now be bought for the money which was sufficient to buy 48 kg of wheat earlier?
1082 0631f34f2b0a2a82fc5667e2d
631f34f2b0a2a82fc5667e2d- 145 kgfalse
- 250 kgtrue
- 355 kgfalse
- 440 kgfalse
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Answer : 2. "50 kg "
Q: If A is equal to 20% of B and B is equal to 25% of C; then what percent of C is equal to A?
1081 061161e9f9c8721103cad02a7
61161e9f9c8721103cad02a7- 110false
- 215false
- 35true
- 420false
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