Question
Ratio of present ages of mother and her son is 21:10
respectively. Father’s present age is 17 years more than that of mother. If the present average age of mother, father, and son is 39 years, then find the ratio of present ages of mother and father respectively.Solution
ATQ, Let present ages of mother and son be ‘21x’ years and ‘10x’ years respectively. So, present age of father = (21x + 17) years So, 21x + 10x + 21x + 17 = 39 × 3 = 117 Or, 52x = 100 Or, x = 2 Present age of mother = 21 × 2 = 42 years Present age of father = 42 + 17 = 59 years Desired ratio = 42:59 = 6:7
Curcuma longa belongs to the family
Anthracnose in guava is caused by which pathogen?
The part of the food that is usually eaten the edible portion and the edible part of litchi is
Which of the following is also “grand period” of rainfall in India?
Scooping is a special operation done in which of the following vegetable crop?
Which of the following parameter is not included in the Soil health card?
In rose pruning time in rose growing area is -
A method of asexual propagation in which a stem is made to produce roots while still attached to the parent plant is called
Which one of the following plant nutrients is translocation regulator?
Which is the only living component of the xylem tissue?
