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Total weight of 48 students = 48×32 = 1536 kg When two students join the class then new total weight = 50×32.4 = 1620 kg Increase in weight = 1620-1536 = 86 kg Average of 2 new students = 84/2 = 43 kg
If x stands for ‘addition’, ÷ stands for ‘subtraction’, + stands for ‘multiplication’, and – stands for ‘division’, then 80 x 54 –...
Two trains start at the same time from Dehradun and Jaipur and proceed toward each other at the speed of 55 km/hr and 25 km/hr respectively. When they m...
In a certain code language, '+' represents '-', '-' represents 'x', 'x' represents '÷' and '÷' represents '+'. Find out the answer to the following qu...
Select the correct combination of mathematical signs that can sequentially replace ‘*’ sign and balance the equation given below.
82 * 28 * 7...
Which two signs should be interchanged to make the given equation correct?
252 + 18 x 11 ÷ 64 - 52 = 166
If '@' means ' X ', '$' means '-', '#' means '÷', and '%' means '+', then what is the value of the expression: [75 % {(169 $ 15) # 11} @ 8]
Which two signs should be interchanged in the following equation to make it correct:
490 ÷ 70 + 5 × 28 – 15 = 48
If in a certain code language ‘+’ represents ‘×’, ‘–’ represents ‘+’, ‘×’ represents ‘÷’ and ‘÷’ represents ‘–’....
Select the correct combination of mathematical signs that can sequentially replace ‘*’ sign and balance the equation given below.
54 * 2 * 4 ...
If 14 (16) 8 and 28 (20) 5, then what is the value of A in 63 (A) 4?
