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Al and Si are ballast element that is they are present in huge amount but plants can grow without them.
Two years ago the ratio of annual salary of three friends P, Q and R is 4 : 3 : 5. Every year since then the salary of P, Q and R increases by 10%, 12% ...
A right triangle ABC with sides 5 cm ,12cm and 13cm is revolved about the side 12 cm. What is the volume of the solid so obtained?
The ratio of the number of girls to the number of boys in a school of 990 students is 2 : 7. If 20 boys left the school, find how many new girls may be ...
A sum is distributed among A, B and C is the ratio 8: 4: 3 and A divides its part between D and E in the ratio 9: 7, then what is the ratio of part of C...
The monthly incomes of Vishal and Rahul are in the ratio 7:6. Their combined monthly income is Rs. 6500. Rahul's monthly savings are Rs. 1200, and Visha...
If the number of coins in purse A and purse B is in the ratio 4:5, and the number of coins in purse C to purse D is in the ratio 3:4. Additionally, the ...
Two numbers are in the ratio 7:5. After adding 2 and 4 to them respectively the ratio becomes 2:3. Find the bigger number.
Two numbers are respectively 40% and 20% more than a third number. Find the ratio of two numbers.
The ratio of heartbreak to emotions is 1:2:3:4. The price of heart is inversely proportional to the square of emotions. If there is a loss of Rs 700 due...
A bag contains coins of Rs 1, 50p, and 25p and the ratio of their values is 15: 12: 7. If there are a total of 1340 coins then what will be the total nu...