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2071.At an educational trip of academy to Islamabad, ratio of boys to girls was 4:5. The number of students on the trip is ______?
2072.15 men were hired to plough a piece if land in 10 days. To complete the same job in three days more number of men is required _____?
2073.Ahmad spent 2/3 of his savings on a used car and he spent 1/4 of his remaining savings on a new carpet. If the carpet costs him Rs. 250 then the amount spent by him on the car is?
2074.In a Math test there were 60 problems which were to be done in 1 hour. A student completes 30 problems in 20 minutes, the average time in seconds for completing each of the remaining problems is _____?
2075.The average of 5 numbers is 13. If the average of 4 of these numbers is 10, then fifth number is _____?
2076.If f(x) = 3x - 3 then _____?
2077.Tick the false statement: ‘÷’ is not a binary operation on N, ‘x’ is a binary operation on N, ‘+’ is a binary operation on N, ‘-’ is a binary operation on N
2078.Anwar has six times as much money aa Meera. If Anwar gives Rs. 80 to Meera, both of them will have equal amounts of money. At the beginning Meera has money ______?
2079.The value of ‘n’ is 15 x (5 x 3)^n =5⁴ x 3⁴ = _____?
2080.The value of (1 - cos² x) × (1 + cot² x) = _____?