Mathematics

Q82

One neon sign blinks every 6 seconds and another every 8 seconds. After how many seconds will they blink together again?

Q83

If 14 taps fill a swimming pool in 10 hours, how much time will 5 taps take to fill the pool?

Q86

A train travels 60 km at 60 km/h and then 60 km at 120 km/h. What is its average speed?

Q88

Rahi buys some toffees at 2 for a rupee and sells them at 5 for a rupee. His loss percentage is

Q90

While watching TV for 1 hour, you count 20 commercials each 30 seconds long. What percent of time is used?

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