5 15 35 75 155 (?)

35 + 15 x 1.5 = ?

What should come in place of the question mark (?) in the following questions ? 1255.5 ÷ (18 xx 15.5) = ?

5 ? 15 75 525 4725 51975

in the following number series only one is wrong . Find out the wrong number . 4 " "2.5 " "3.5" "6.5" "15.5" "41.25" " 126.75

Calculate the median from the following data: Rent (in Rs.): 15-25 25-35 35-45 45-55 55-65 65-75 75-85 85-95 No. of Houses: 8 10 15 25 40 20 15 7

Calculate the median from the following data: Rent (in Rs.): 15-25 25-35 35-45 45-55 55-65 65-75 75-85 85-95 No. of Houses: 8 10 15 25 40 20 15 7

A compound on analysis was found to contain 53.33 % C , 15.5 % H , and the rest nitrogen . The formula of the compound is