दिए गए वाक्य का वह भाग

If P @ Q means P + Q, P # Q means P − Q, P $ Q means P  × Q and P % Q means P ÷ Q, then what is the value of '144 % 12 $ 6 # 32 @ 15'?

If '+' means ' - ', ' X ' means '+', ' - ' means '÷' and '÷' means ' X ', then what is the value of the following expression?

Select the combination of numbers that when placed sequentially in the blanks of the given series will complete the series.

What will be the value of given expression if the numbers ‘55’ and ‘15’ are interchanged?

55 - 40 + 45 ÷ 9 + 15 × 3

If '#' means ' - ', '@' means '+', '$' means '÷' and '&' means ' X ', then what is the value of the following expression?

72 # 91 $ 7 & 4 @ 18

Which two signs should be interchanged to make the following equation correct?

36 – 36 ÷ 9 + 8 × 4 = 8