Below are simplest of the simple questions on equation solving. Though they look simple, a few careless mistakes could lost you marks.
If .3t = 8.5 - .8s, .5s = .3t + 1.9, find the value of ‘s’.
a) 10 b) 12 c) 16 d) 8
Answer : d) 8
Dear Readers, Below are few problems based on arithmetic and geometric means.
A group of students were proceeding on an education excursion. One of the students told:
The arithmetic mean of 2 numbers is 32.5 and their geometric mean is 30. One of the numbers will be
a) 20 b) 42 c) 12 d) none of these.
Answer : a) 20