Mathematics : औसत

एक परिवार में चार बहनें है तथा उनकी औसत आयु 7 वर्ष है। यदि चारो की आयु में माँ को भी शामिल किया जाए तो नया औसत आयु 13 वर्ष हो जाती है तो माँ की आयु क्या है ? , There are four sisters in a family and their average age is 7 years. If the mother is also included in the age of all four, then the new average age becomes 13 years, then what is the age of the mother?

एक परिवार में चार बहनें है तथा उनकी औसत आयु 7 वर्ष है। यदि चारो की आयु में माँ को भी शामिल किया जाए तो नया औसत आयु 13 वर्ष हो जाती है तो माँ की आयु क्या है ?

There are four sisters in a family and their average age is 7 years. If the mother is also included in the age of all four, then the new average age becomes 13 years, then what is the age of the mother?
A. 17 वर्ष (17 Year)

B. 27 वर्ष (27 Year)

C. 37 वर्ष (37 Year)

D. 38 वर्ष (38 Year)



Correct Answer :

C. 37 वर्ष



CCC Online Test , CCC MCQ Python Programming Tutorials Best Computer Training Institute in Prayagraj (Allahabad) O Level NIELIT Study material and Quiz career counselling in allahabad Website development Company in Allahabad