Question
Five years ago from now, ratio of ages of Pooja and
Seema was 3:6, respectively. If 5 years hence from now, ratio of their ages will be 5:8, then find the present age of Seema.Solution
Let age of Pooja and Seema, 5 years ago from now was '3x' years and '6x' years, respectively ATQ; {(3x + 10)/(6x + 10)} = (5/8) Or, 24x + 80 = 30x + 50 Or, 6x = 30 Or, x = 5 So, present age of Seema = 6x + 5 = 6 X 5 + 5 = 35 years Hence, option c.
Cartilaginous fish are fish that have a skeleton made of cartilage. Cartilaginous fishes belong to:
The relation between percent and p.p.m. during preparation of plant growth regulator is
Maximum residue limits for individual pesticides in or on specific commodities is proposed by:
Radiation dose is defined as the:
The first wheat variety having short plant height, lodging resistance and higher grain yield wasÂ
Plants of which family are reported to assimilate CO2 in night
The enzyme in saliva for carbohydrate digestion is
Which variety of moong takes shortest period to mature:
Under the scheme DAY NRLM short term loans of Rs. 3 lakh are given to SHGs. It has a provision of additional interest subvention of ___ % for prompt rep...
Given below are two statements
Statement I: The greenhouse effect is the retention of heat in the lower atmosphere due to absorption and re-r...