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There are 200 questions in a 3 h examination. Among 200 questions, 50 are from Mathematics, 100 are from GK and 50 are from Science. Ram spent twice as much time on each Mathematics question as for each other question. How many minutes did he spend on Mathematics questions ?

CBSE Class 10 Hindi Most Important Questions | 5 Mark Most Expected Questions | CBSE Board 2020

CBSE Class 10 Hindi - लेखन Most Important Questions | 26 Marks Most Expected Questions | CBSE Board 2020

- - G - C - GK - PG -

What will come in place of the question mark(?) in the following series of English alphabet? AE CG EI GK ?

The specific heat of a substance varies with temperature according to the function c = 0.20 + 0.14 T + 0.023T^(@) , with T in ""^(@)C and c in Cal//g.K , Find the energy required to raise the temperature of 1.0g of this substance from 5.0 ""^(@)C to 15""^(@)C .

A fort is at the top of a hill of height h above the sea-level.Prove that the greatest horizontal distance from which a gun in the ship can hit the fort is 2sqrt(k(k-h)) where sqrt(2gk) is the muzzle velocity.

0.05 kg steam at 373K and 0.45kg of ice at 253K are mixed in an insultated vessel. Find the equilibrium temperature of the mixture. Given, L_(fusion)=80cal//g=336J//g, L_(vaporization)=540 cal//g=2268J//g,C_(ice)=2100J//KgK=0.5calg//gK and S_(water)=4200J//KgK=1cal//gK