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681.An allowance is increased by 20% and then reduced by 10% of the increased amount. What is the overall change from the original allowance?
682.Six clerks can process 720 applications in eight hours at a constant individual rate. At the same rate, how many applications can five clerks process in six hours?
683.An allocation for stationery and printing is divided in the ratio 3:5. If the printing share exceeds the stationery share by Rs 48,000, what is the total allocation?
684.A processing unit completes 18, 22, 20 and 16 cases in its first four hours. How many cases must it complete in the fifth hour for the five-hour average to be 20?
685.In an A.P a=3, d=6, n=9, Tn= ?
686.A number is increased by 20% and then decreased by 20%. Find the net increase or decrease percent?
687.A train travels 240 km at a certain speed. If its speed is increased by 20 km/h, the journey takes 1 hour less. What was the original speed?
688.The average of five consecutive odd numbers is 37. What is the product of the smallest and largest numbers?
689.A, B and C can complete a task individually in 12, 18 and 36 days, respectively. If they work together, how many days will they require?
690.A sum of money is divided between A and B in the ratio 5 : 7. If B receives Rs. 840 more than A, what is the total amount?