If ‘P’ denotes ‘multiplied by’ , ‘R’ denotes ‘added to’; ‘T’ denotes ‘subtracted from’ and ‘W’ denotes ‘divided  by ‘, then 64W4P8TR$=?

√0.00169x?=1.3

(408 + 220+ 102) + (240-?-57) = 29.2

968 * 445 ÷7=17230.4

What will come in place of question mark (?) 362.721 + 431.027 - 118.079 = 521.211 + ?

If √(x-y)(y+2)=7, x and y being positive whole numbers, then the values of x and y respectively are:

What was the total sales revenue in 1996

40219+ 38924 =?+67713

22% of? + 166.64 = 340

1/4 of 3/5 of 6/5 of a number is 54 what is the number?