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Let price of one pen = x Let price of one notebook = y Mohit bought 3 pens and 6 notebooks by paying an amount of ₹180. 3x + 6y = 180 3x = 180 – 6y x = (180 – 6y) ÷ 3 x = 60 – 2y --------- (i) Sudesh bought 5 pens and 2 notebooks by paying an amount of ₹116. 5x + 2y = 116 Putting the value of x from equation (i) 5(60 – 2y) + 2y = 116 300 – 10 y + 2y = 116 300 – 8y = 116 300 – 116 = 8y 184 = 8y y = 23 Mohit spend on buying notebooks = 6y = 6 x 23 = 138.
How many male members are in the family?
A is the son-in-law of P and is the brother-in-law of T who is the brother of V. V is the daughter of P. How is T related to P?
Anuj is father of Chitra and Dinesh. Anuj is son of Bimla. Ram is brother of Anuj. If Chitra is sister of Dinesh, how is Ram related to Bimla?
How is H related to C?
How is M related to P’s mother?
How is G related to H?
W is the son of S. V is the son of T. W is married to U. U is T’s daughter. How is V related to W?
How is Z related to T?
. As per which of the following expressions means S is the uncle of Q?
Who among the following person is the son of A?