Total work = Number of days×1 day’s work (efficiency) Total work = LCM (12, 16) = 48 unit 1 day’s work of A = 48/12 = 4 unit 1 day’s work of B = 48/16 = 3 unit 1 day’s work of (A + B) = 4 + 3 = 7 unit Now, 3 day’s work of (A + B) together = 3× 7 = 21 unit Remaining work = 48 – 21 = 27 Remaining work completed by B = 27/3 = 9 days
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If ‘−’ stands for ‘÷’, ‘+’ stands for ‘×’, ‘÷’ stands for ‘−’ and ‘×’ stands for ‘+’, then 80 − 20 + 10 ÷ 8 Ã...
Select the option that is related to third letter - cluster in the same way as the second - letter cluster is related to the first letter - cluster.
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If 2 is denoted by '[', 4 is denoted by '=' , 9 is denoted by '-' and 0 is denoted by '+', what is '=[-+'?
If ‘x’ means ‘additions’, ‘–‘ means ‘division’, ‘÷’ means ‘subtraction’ and ‘+’ means ‘multiplication’, then what wil...
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If '@' means 'addition', '%' means 'multiplication', '$' means 'division' and '#' means 'subtraction', then find the value of the following expression.<...
If + means –, – means ×, × means ÷, and ÷ means +, then what will be the value of following expression?
13 – 3 + 15 × 3 ÷ 5 = ?
In a certain coding system, 'paper pencil eraser' is coded as 'sd er nm'. 'book machine paper' is coded as 'nj sd cv' and 'tool pencil machine' is coded...
