Decimal Fractions Practice Question and Answer
8 Q: What approximate value should come in place of the question mark(?) in the following question?
105.003+307.993+ 215.630=?
2347 05d4aac9111160f205237393c
5d4aac9111160f205237393c105.003+307.993+ 215.630=?
- 1610false
- 2650false
- 3660false
- 4670false
- 5630true
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Answer : 5. "630"
Explanation :
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Q: Sum of 5 times of a fraction and 4 times its reciprocal is 9. What is fraction?
1597 05ed9da03e11a1c4b43e6908e
5ed9da03e11a1c4b43e6908e- 1$$ {2\over7}$$false
- 2$$ {5\over4}$$false
- 3$$ {4\over5}$$true
- 4$$ {7\over2}$$false
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Answer : 3. "$$ {4\over5}$$"
Q: Which of the following fractions is greater than $$ {3\over 4}$$ and less than $$ {5\over 6}$$?
1541 05fb4de802638fd6f566482bc
5fb4de802638fd6f566482bc- 1$$ {4\over 5}$$true
- 2$$ {1\over 2}$$false
- 3$$ {2\over 3}$$false
- 4$$ {9\over 10}$$false
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Answer : 1. "$$ {4\over 5}$$"
Q: Two numbers are in the ratio x : y . If 2 is added to both numerator and denominator , the fraction becomes $$ 1\over2$$. Find the value of x + y .
1299 05ef187c681a47f2e7ae7e208
5ef187c681a47f2e7ae7e208- 12false
- 23false
- 34false
- 45true
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Answer : 4. "5 "
Q: The difference between a fraction and its reciprocal is 9/11. If the cubes of both the fraction and its reciprocal are considered, what will be the difference between them?
1257 06086677491a9f43a97be5f0e
6086677491a9f43a97be5f0e- 13996/1331true
- 2-1331/2538false
- 3729/1331false
- 4-2538/1331false
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Answer : 1. "3996/1331"
Q: Which of the following fraction is the largest? 1212 15b5cc604e4d2b4197774b4da
5b5cc604e4d2b4197774b4da- 17/12true
- 29/16false
- 313/20false
- 432/80false
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Answer : 1. "7/12"
Explanation :
Answer: A) 7/12 Explanation: Here to say which fraction is greater from the given options, the fraction with greater numerator with same denominator or smaller denominator with same numerator. To find the greater fraction, among the given options, make the denominators same for the options by finding the LCM of all the denominators. 7/12, 9/16, 13/20, 32/80 Now, LCM of 12, 16, 20, 80 = 240. Then, 140/240, 135/240, 156/240, 96/240 Here 156240 > 140240 > 135240 > 96240=> 1320 > 712 > 916 > 3280 Hence, largest fraction = 13/20.
Q: If $$ 5^{5x+1}=1 $$, then x equals
1177 05d7f1bf0fb24f90208636665
5d7f1bf0fb24f90208636665- 10false
- 2-1true
- 31false
- 4$$ -{4\over5}$$false
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Answer : 2. "-1"
Q: Find the sum of the factors of 3240
1143 062f23c5155c5be5841071253
62f23c5155c5be5841071253- 110890true
- 211000false
- 310800false
- 410190false
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