Maths Practice Question and Answer
8Q: Compounding interest means interest accrues 2571 15b5cc604e4d2b4197774b4b8
5b5cc604e4d2b4197774b4b8- 1at variable rates throughout the termfalse
- 2more quickly than simple interesttrue
- 3more slowly than simple interestfalse
- 4at the same rate as simple interestfalse
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Answer : 2. "more quickly than simple interest"
Explanation :
Answer: B) more quickly than simple interest Explanation: Compounding interest means interest accrues on the interest charged and the principal amount each period the interest is charged. Compound interest is calculated by multiplying the principal amount by one plus the annual interest rate raised to the number of compound periods minus one.The total initial amount of the loan is then subtracted from the resulting value. The formula for calculating compound interest is: [P (1 + i)n] – P = P [(1 + i)n – 1] (Where P = Principal, i = nominal annual interest rate in percentage terms, and n = number of compounding periods.) Take a three-year loan of Rs. 10,000 at an interest rate of 5% that compounds annually. What would be the amount of interest? In this case, it would be: Rs. 10,000 [(1 + 0.05)3] – 1 = 10,000 [1.157625 – 1] = Rs. 1,576.25. How it grows ::
Q: In an alloy, the ratio of copper and zinc is 7 : 6. If 1,450 gm. of zinc mixed with in 14 kg 300gm. of an alloy, then the ratio of copper and zinc will be
2570 060ffd69933382a2da13c6c15
60ffd69933382a2da13c6c15- 126:27false
- 222: 23true
- 323:26false
- 425: 21false
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Answer : 2. "22: 23"
Q:Directions :- Read the given information carefully and answer the following questions.
There are four hostels i.e. A, B, C and D.
In hostel A: Number of boys are 120 and number of girls are 30% more than that of number of girls in
hostel B.
In hostel B: Number of boys are double than that of number of girls.
In hostel C: Number of boys are 100 more than that of boys in hostel A and total boys and girls in C is 1000.
In hostel D: Number of boys is 182 more than the number of boys in hostel A. Average of number of girls of hostel A and that of hostel D is 223.Number of boys in hostel D is 98 less that of boys in hostel B.
Total number of boys in hostel A and that of girls in hostel C is what percent more than number of boys in hostel B?
2570 06040af57b0e8d85dadac5569
6040af57b0e8d85dadac5569- 1100%false
- 2125%true
- 3150%false
- 4137.5%false
- 5175%false
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Answer : 2. "125%"
Q:Directions : What will come in the place of the question mark (?) in the following number series?
201, 199, 192, 175, 143, ?
2569 05e93e1a48e9fdd3c20478ad3
5e93e1a48e9fdd3c20478ad3- 189false
- 2None of thesefalse
- 391true
- 493false
- 5103false
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Answer : 3. "91"
Q: While travelling downstream, a man can row 16 km more in 4 hours as compared to travelling upstream. What is the speed of the stream?
2567 062b33481fbadac125c6d0edf
62b33481fbadac125c6d0edf- 11.5 km/hfalse
- 21 km/hfalse
- 32 km/htrue
- 41.25 km/hfalse
- 5None of thesefalse
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Answer : 3. "2 km/h"
Q: If $${17}^{200}$$ is divided by 18, the remainder is:
2566 05d7788e5e871b064d456dfb5
5d7788e5e871b064d456dfb5- 117false
- 216false
- 31true
- 42false
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Answer : 3. "1"
Q: If $$ {3^{4x-y}={3^{x+y}=\sqrt{27}}}$$, then the value of y is:
2566 05f644e3ae318e06cd33b42b7
5f644e3ae318e06cd33b42b7- 1$$ {9\over 10}$$true
- 2$$ {3\over 2}$$false
- 32false
- 4$$ {3\over 4}$$false
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Answer : 1. "$$ {9\over 10}$$"
Q: The age of Shipra can be obtained by subtracting three times her age 3 years ago from the three times her age after 3 years. What will her age after 2 years?
2565 05e96c467f3e7121e409fae36
5e96c467f3e7121e409fae36- 120 yearstrue
- 222 yearsfalse
- 318 yearsfalse
- 424 yearsfalse
- 5None of thesefalse
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