Question
Which of the following is used for measuring the rate of
transpiration?Solution
A potometer —sometimes known as a Tran spirometer — is a device used for measuring the rate of water uptake of a leafy shoot. The causes of water uptake are photosynthesis and transpiration.
A man takes 3.5 hours to reach a friend's house, which is 50 km away from his residence. He returns home traveling at 20 km/h. Ca...
There are three classes P, Q and R. The average marks of class P is 75. The average marks of class Q is 80. The average marks of class R is 85. The aver...
The average age of 33 children and their teacher's age are 25 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
The average number of taxis of three colours (black, white and yellow) in a taxi stand is 155. The number of black taxis is 60 more than that of yellow ...
In a factory, the average salary of all employees is Rs. 5600 and the average salary of 24 supervisor is 7200. If the average salary of labours is 4800,...
There are three numbers. If the average of any two of them is added to the third number, the sums obtained are 177, 163 and 138. Whatis the average of ...
Average run scored by a batsman in first ‘x’ matches is 77. In next 12 matches he scored runs with an average of 90 so that his overall average incr...
The average cost of 5 chairs is Rs. 12000. The average cost decrease by 12% when one more chair is included. What is the cost price of the 6th
The average selling price of rice is Rs. 5 per kg more than the average selling price of pulses. The quantity of pulses sold is 25% more than the quanti...
The average age of a class of 24 girls is 15 years. If 6 new girls having average age of 10 years join the class, then the average age of the class beco...
