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R = 2/3 (P + Q + R) -------(i) P = 1/9 (P + Q + R) -------(ii) Q = 10 years ------(iii) By adding eq. (i) , (ii) and (iii), we get P + Q + R = 2/3 (P + Q + R) + 1/9 (P + Q + R) + 10 Let P + Q + R = x x = 2/3 x + 1/9 x + 10 x - 2/3 x - 1/9 x = 10 x = 45 years Average age of P, Q and R = 45/3 = 15 years.
Salman starts from his office and drives 29 km towards South. Then he turns right and drives 16 km, again he turns right and drives 29 km. Finally he tu...
In a certain code language, ‘CARD’ is coded as ‘7359, ‘SERV’ is coded as ‘1256’and ‘PACK’ is coded as ‘8497’. What is the code for...
When the below given diagram is folded in the shape of a cube which symbol will face opposite to ‘^’?
Which two signs should be interchanged to make the below equation mathematically correct?
7 – 3 + 6 × 4 ÷ 2 = 25
Choose the correct option to replace (‘?’) question mark in the following figural series
What should come in place of ? in the given series?
64 61 55 46 34 ?
If + means −, − means ×, × means ÷ and ÷ means +, then what will come in place of the question mark (?) in the following equation?
81 × ...
KML : NPO :: CED : ?