Given that carbon-14 decays at a constant rate in such a way that it reduces to 50% in 5568 years, find the age of an old wooden piece in which the carbon is only 12.5% of the original. `15836\ y e a r s` b. `16668\ y e a r s` c. `16704\ y e a r s` d. `17552\ y e a r s`

Given that carbon -14(C_(14)) decays at a constant rate in such a way that it reduces to 50% in 5568 years.Find the age of an old wooden piece in which the carbon is only 12.5% of the original.

Given that carbon: 14("C"_(14) ) decays at a constant rate In such a way that it reduces to 50% in 5568 yr. Then, the age of an old wooden piece In which the carbon Is only 12.5% of the original Is equal to

Given that carbon-14 (C_(14)) decays at a constant rate in such a way that it is reduced to 25% in 1244 years. Find the age of a tree in which the carbon is only 6.25% of the original.

The value of a flat worth Rs. 500000 is depreciating, at the rate of 10% p.a. In how many years will it' value be reduced to Rs. 364500? 3\ y e a r s b. 4\ y e a r s c. 5\ y e a r s d. 6\ y e a r s

The present ages of a mother and her son are I the ratio 11:5. When the son becomes a sold as his mother is now, then the ratio of his fathers age to that of his mother is 19:17. When the son becomes as old as his father is now, then the sum of his fathers age and his age will be 170 years. What is the fathers present age? 52 y e a r s b. 60 y e a r s c. 65 y e a r s d. 70 y e a r s

One year ago the ratio of the ages of Sarika and Gouri as 3:4 respectively. One year hence the ratio of their ages will be 10 :13 respectively. What is Sarika's present age? 18\ y e a r s b. 20\ y e a r s c. 26\ y e a r s d. cannot be determine e. none of these

A 50 metre long train passes over a bridge at the speed of 30 km per hour. If it takes 36 seconds to cross the bridge, what is the length of the bridge? 200 m e t r e s b. 250 m e t r e s c. 300 m e t r e s d. 350 m e t r e s