Question
A lad was asked his age by his friend. The lad
said “The number you get when you subtract 25 times my age from twice the square of my age will be thrice your age. If the friends age is 14 then what will be the age of lad.ÂSolution
Let the age be x  As per the question  2x 2 –25x-42=0  X= 28 or –3  So, the required answer is 28 years.
Which of the following property of soil is not influenced by tillage operations?
White grub in maize can be controlled byÂ
The condition where the plant is unable to produce a zygote with its own pollen is called as?
Pseudo dominance is related with
____ is a milk process that makes milk more easily digested by those with a sensitive digestive system.
Which of the following elements has not been proved to be essential for plants?
Sedges are monocot with triangular stem and parallel venation and belong to ______ family.
When fruit develops from the mere stimulus of the pollination, but without fertilization it is known as_____
If the time shown in a clock is 8:20, then what will be the clock angle made by minute and hour hands?
A Chromosome with medium position of centromere is known as
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