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Sol: Let the original price(O.P.) be Rs. X per kg. New price(N.P.) = 80% of x = Rs. 4x/5per kg. Quantity of petrol the person could buy at original price = 540/xltr. Quantity of petrol he can buy at new price = ltr. =675/x-540/x 3 = 135/x= 3 ⇒ 3 = 135 ⇒ = 45 O.P. = Rs.45 and N.P. = Rs. 4x/5= 4*45/5= Rs.36
P and Q together have Rs 2,420. If 8/15 of P’s amount is equal to 4/5 of Q’s amount, how much amount does Q have?
‘x’ varies directly as ‘y’. If at x = 24 the value of ‘y’ is 25% more than ‘x’, then find the value of ‘x’ when ‘y’ = 55.
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Ratio of males to females in village ‘A’ and village ‘B’ is 4:5 and 19:20, respectively and number of females in village ‘B’ is 25% more tha...
Rs. 11200 was divided among A, B and C in the ratio 2:3:3. B kept Rs. 1000 for himself, gave Rs. 600 to his mother and divided the remaining money among...
