200 में से 40 घटाएं और फिर प्राप्त परिणाम को 20 से विभाजित करें। अंतिम मान क्या होगा?

There are five spools of thread in white, black, red, green, and blue colors. Each spool measures 87.50 m. If thread used is: white = 43.25 m, red = 38.62 m, black = 71.98 m, green = 21.04 m, and blue = 29.74 m, find the balance thread remaining in all five spools together.

A government office uses 4 reams of paper daily. How many reams in total will they use in 7 days?