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What should come in place of question mark (?) in the following questions?
(47 × 562.58) ÷ (23 × 112.23) = ?
333.33 + 33.33 + 13 + 0.33 + 0.03 = ?
2450 ÷ 7 + 112 × 2.5 = ?
Pinku, Shivani and Mohita are three sisters. Pinku and Shivani are twins. The ratio of sum of the ages of Pinku and Shivani is same as that of Mohita alone. Three years earlier the ratio of age of Pinku and Mohita was 2 : 7. What will be the age of Shivani 3 years hence?
Vinita and Viraj run a race with their speeds in the ratio of 5 : 3. They prefer to run on a circular track of circumference 1.5 km. What is the distance covered by Vinita when he passes Viraj for the seventh time?
In how many ways can 21 books on English and 19 books on Hindi be placed in a row on a shelf so that two books on Hindi may not be together?
A service provider purchases connections at the rate of 10 connections for Rs. 54 and sold them at 6 connections for Rs. 38. Find the number of connections he should sell to have a profit of Rs. 1120.
Three taps A, B, and C can fill a tank in 12, 15 and 20h respectively. If A is open all the time and B and C are open respectively for one hour each alternatively, the tank will be filled in:
Gaurav got married 8 years ago. His present age is 6/5 times his age at the time of his marriage. Gaurav’s sister was 10 years younger to him at the time of his marriage. The age of Gaurav’s sister is-
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