Question
A man swims downstream 81 km and upstream 45 km, taking
9 hr each time. Find the man’s rate in still water?  ÂSolution
Speed downstream = 81/9 = 9 km/hr Speed upstream = 45/9 =  5 km/hr Man’s rate in still water= (9 + 5) * ½ = 7 kmph
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
1726 1/3 + 40% of 1849.889 + 15.12 × 18.25 = ?
What approximate value will replace the question mark (?) in the following?
19.99...
What approximate value will replace the question mark (?) in the following?
? = 2...
(17.98% of 249.99) - 4.998 = √?
1560.182 ÷ √168 + √143 * √224 – 4649.87 ÷ 30.883= ?    Â
`(sqrt(960.87)xx9.932+sqrt(629.998)xx26.385)/(sqrt(1028.902)xx4.977)=?`
What approximate value will replace the question mark (?) in the following?
? + 1...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
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