Question
A boat can cover 176 km in downstream in 11 hours and
150 km in upstream in 15 hours. Find the speed of boat in still waterSolution
Downstream speed of the boat = 176/11 = 16 km/hr Upstream speed of the boat = 150/15 = 10 km/hr Speed of boat in still water = (16 + 10)/2 = 13 km/hr
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 × ...
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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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