Related Questions

If the cost of a long-distance phone call is C taka for the first minute and (2/3) C taka for each additional minute, what is the cost, in taka, of a 10 minute call of this type?
If the cost of a long distance phone call in C taka for the first minute and (2/3) C taka for each additional three minute. what is the cost in taka of a ten minute call of this type?
Five motorbikes had a race . The Honda beat the Hero but couldn't overtake the Kawasaki . The Vespa failed to overtake the Suzuki but beat the Kawasaki . Which bike came last ?
In a race of 200 m, A can beat B by 31 m and C by 18 m. In a race of 350 m, C will beat B by:
In a race 200m, A can beat B by 31m and C by 18m. In arace of 350m, C will beat B by------
Which of the following increases the rate of heart beat?
A 12 gallon tub has a faucet that lets water in at a rate of 3 gallons per minute, and has a drain that lets water out at a rate of 1.5 gallons per minute. If you start with 3 gallons of water in the tub, how long will it take to fill the tub completely?
আজ পরীক্ষা দিতে আসার সময় তোমার কোনো এক বন্ধুর খুব টেনশন হচ্ছিল। টেনশনে তার হাত-পা ঘামছিল, গলা শুকিয়ে যাচ্ছিল, হৃৎস্পন্দন বেড়ে যাচ্ছিল। এমতাবস্থায়, তার কোন স্নায়ুতন্ত্র কার্যকর ছিল? (One of your friends was in serious tension while coming for exam today. He was sweating, having dry mouth, and his heart beat was accelerated. Which nervous system was in action at that time?)
To complete one heart beat the time taken is
The elevator in an eleven-storied office building travels at the rate of one floor per 1/4 minute, which allows time for picking up and letting down passengers. At the main floor and at the top floor the operator stops for 1 minute. How many complete (with return) trips will the operator makes during a 7-hour period?