Question
Four runners started running simultaneously from a
point on a circular track. They took 400 seconds, 600 seconds, 720 seconds and 900 seconds to complete one round. After how much time do they meet at the starting point for the first time ?Solution
Required time LCM of 400, 600, 720 and 900 seconds = 3600 seconds
If '+' means ' - ', ' X ' means '+', ' - ' means '÷' and '÷' means ' X ', then what is the value of the following expression?
112 - 4 + 65 X 22...
If '%' means (+), '#' means ( - ), '@' means ( X ), and '&' means (÷), then what is the value of the expression:
80 % 110 & 5 @ 9 # 104
If ‘÷’ means ‘-’, ‘-’ mean ‘+’, ‘+’ means ‘×’ and ‘×’ means ‘÷’, compute the value of the expression:
130 × ...
Which two signs need to be interchanged to make the following equation correct?
62 – 12 × 60 ÷ 12 + 30 = 92
If in a certain code language ‘+’ represents ‘×’, ‘–’ represents ‘+’, ‘×’ represents ‘÷’ and ‘÷’ represents ‘–’....
If '+' means '-', ' X ' means '+', '-' means '÷' and '÷' means ' X ', then what is the value of the following expression?
91 - 7 X 18 ÷ 5 + 10...
If '>' means 'Addition', '$' means 'Divide', '<' means 'Subtract', '%' means Multiply', Then '' 54 > 32 $ 8 < 6 % 5 ' = (?)
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
56 * 492 * 6 * 7 * 123 = 507
If x stands for ‘addition’, ÷ stands for ‘subtraction’, + stands for ‘multiplication’, and – stands for ‘division’, then 90 x 85 – ...
If the word 'EXAMINATION' is arranged in alphabetical order from the right end, then which of the following letter will be the fourth letter to the righ...
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