Question
X, Y and E can do piece of work in 24, 30 and 40 days
respectively. All three began to work together but X and Y left 6 and 8 days respectively before completion of the work. In how many days was the work completed?Solution
X’s one day’s work = 1/24days Y’s one day’s work = 1/30days E’s one day’s work = 1/40days Then, (x - 6)/24 + (x - 8)/30 + (x)/40 = 1 (5(x-6) + 4(x-8)+3x)/120 = 1 5x – 30 + 4x – 32 + 3x = 120 12x = 120 + 62 12x = 182 x = 182/12 ∴ x = 91/6 days = 15(1/6) days
In a certain code language, ‘INFERRING’ is written as ‘TMRIIVUMR’. What is the code for ‘STATEMENT’ in that code language?
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Which number will replace the question mark (?) in the following number series?
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What would be the letter on the opposite side of 'Y' if the given sheet is folded to form a cube?
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Which of the following numbers will replace the question mark (?) in the given series?
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If the following words are arranged alphabetically as per the order in the dictionary, which word will be the second word?
1. Magical
2. M...
Which two numbers should be interchanged to make the given equation correct?
(99 − 42 + 11) + (36 ÷ 6) × 7 − 50 = 73
(NOTE: Numbers ...
I is the father of L. L and K are the children of M. L is the husband of N. O is the husband of K. P is the son of O. How is I related to P?
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