Pipe A can fill a tank in 40 minutes . Pies B can empty the tank in 30 minutes . If both the pipes are opened simultaneously when tank is half full, then will be tank become full or empty?
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The half life of `._(90)Th^(225)` is 8 minutes How many half lives are there in 2 hours ? How long would you have to wait before there is less than 1
Correct Answer - `15; 53.15` min
2 Answers 1 views
Which of the following is the empty/non-empty set `(i) {x:x"is a real number and"x^(2)-1=0}` `{x : x"is a real number and" x^(2)+1=0}` `(iii) {x : x "
Correct Answer - `(i)` non empty `(ii)` empty `(iii)` non-empty `(iv)` non-empty
2 Answers 1 views
A drum in the shape of a frustum of a cone with radii 24 ft and 15 ft and height 5 ft is full of water. The drum is emptied into a rectangular tank of
Correct Answer - `1(3)/(7)`ft
2 Answers 1 views
A company manufactures two type of novelty souvenirs made of plywood, Souvenirs of type A recquire 8 minutes each for cutting and 10 minutes each for
Correct Answer - `8x+10y le240` `10x+15y le 300` ` x ge 0, y ge 0`
2 Answers 1 views
Pipe A in fill a tank in 15 horurs Pipe A and Pipe B together can fill it in 10 hours Pipe B can fill 8 liters per minute. Find the capicity of the ta
Correct Answer - 14400 litres
2 Answers 1 views
Two pipes A and B can fill a tank in 20 and 24 minutes. Resepctively. Pipe C can empty the tank in 10 minutes. Pipes A and B are opened for 5 minutes
Correct Answer - 55 minutes
2 Answers 1 views
Distance between Kota and Jaipur is 240 km. Two persons A and B both start simultaneously from Kota to Kota to Jaipur. A travels half distance with 40
Correct Answer - (i) 48 km/h, 50 km/h, (ii) Person B, 12 min before
2 Answers 4 views
A man travels half time of its journey with speed of 5m/s and for remaining half time he moves half of its total distance travelled, with speed of 3 m
Correct Answer - 4.5 m/s
2 Answers 1 views
Full full for CPU is ______________
(A) Central Processing Unit
2 Answers 1 views
Name the following : i. Full form of CGS unit system ii. Full form of FPS unit system
i. Centimetre Gram Second ii. Foot Pound Second iii. Metre (m) iv. Cd v. Kelvin (K) vi. Ampere (A)
2 Answers 1 views