The average of 52, 71, 43, 22, a and b is 55 and the average of 42, 45, 49, 51, 42, c and d is 53. What is the average of a, b, c and d ?
52, 71, 43, 22, a और b का औसत 55 है और 42, 45, 49, 51, 42, c और d का औसत 53 है। a, b, c और d का औसत क्या है?
52, 71, 43, 22, a aur b ka ausat 55 hai aur 42, 45, 49, 51, 42, ch aur d ka ausat 53 hai. a, b, ch aur d ka ausat kya hai?
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