Question
Three machines P,Q and R were hired by a company for a
month. Machine P runs 18 hours for 15 days, machine Q runs 20 hours for 18 days and machine R runs 24 hours for 32 days. If at the end of the month, the rent amounts to Rs. 58,250. How much ought to be paid for each machine (in Rs.)?Solution
Rent for machine P : Rent for machine Q: Rent for machine R = 18`xx` 15 : 20`xx` 18 : 24`xx` 32 = 45 : 60 : 128 Rent to be paid for machine P = `45/(45+60+128)` × 58,250 = Rs. 11,250 Rent to be paid for machine Q = `60/(45+60+128)` × 58,250 = Rs. 15,000 Rent to be paid for machine R = `128/(45+60+128)` × 58,250 = Rs.32,000
Twinkling of the Stars is due to the phenomenon ofÂ
What is the SI unit of power?
One Kilowatt hour is equal to—
In a coil with n turns, what happens to the induced electromotive force (EMF) if the number of turns is doubled while the magnetic flux remains constant?
Pulsars are :
What is the colour of neutral wire?
1) Red
2) Green
3) Black
4) Yellow
The Mud festival ‘Chikhal Kalo’ is celebrated in which state?
S.I unit of Inductance is
What is the SI unit for measuring speed?
The Atom Bomb dropped in Nagasaki is an uncontrolled nuclear fission made up of: