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Let the present ages of P and Q be 8x and 7x years respectively. According to the question, => 8x + 10 = 2(7x – 4) => 8x + 10 = 14x - 8 => 6x = 18 => x = 3 Required age = 8x – 5 = 19 years
If '+' means '-', '×' means '+', '-' means '÷', and '÷' means '×', then what is the value of the expression ' 100 - 10 + 30 × 5 ÷ 2 × 10' ?
...If + means −, − means ×, × means ÷, and ÷ means +, what will be the value of the following expression?
19 ÷ 14 + 8 – 12 × 3
...If 65 + 54 = 2, 71 + 62 = 10, then 73 + 83 = ?
Given below an equation having four blanks you have to check from the alternatives which among the given is correct?
21 _ 51 _ 7 _ 12 _ 75
Which one of the given mathematical operations will result in 429?
After interchanging the given two signs, what will be the value of the given equation? + and ÷
128 - 45 ÷ 72 + 9 X 11
Out of the total number of players, 100/3 % are in hotel X and the remaining are in hotel Y. If 20 players from hotel Y are shifted to hotel X, then the...
If ' + ' means ' × ', ' - ' means ' ÷ ', ' × ' means ' - ' and ' ÷ ' means ' + ' then 18 × 9 ÷ 3 + 8 - 4 = ?
...If ‘÷’ means ‘-’, ‘-’ mean ‘+’, ‘+’ means ‘×’ and ‘×’ means ‘÷’, compute the value of the expression:
135 × ...
If ‘–‘ means ‘addition’, ‘+’ means ‘subtraction’, ‘÷ ‘ means ‘multiplicat...
