Let the present ages of Rahul and his son be x and y respectively. 2n years ago, => x – 2n = 4(y – 2n) => x = 4y – 6n ------ (i) n years ago, => x - n = 3(y – n) => x = 3y – 2n ------ (ii) Solving (i) and (ii) we get, => y = 4n => x = 4 × 4n – 6n = 10n Now n years later, => x + n + y + n = 80 => 4n + n + 10n + n = 80 => 16n = 80 => n = 5 Required difference = 10n – 4n = 6n = 30 years
The type of germination observed in pigeon pea is____
The division of nucleus is known as:
EC of saline soils is:
National year of millets was observed in which year?
What does opportunity cost in farming refer to?
Best season for potato cultivation is :
Central Institute of Post-Harvest Engineering and Technology is located at----
When to irrigate wheat after sowing if only one irrigation water is available:
Which of the following could be the valid value(s) of the correlation coefficient between two variables?
(A) -1
(B) +1
(C) -2
<...Which type of crop is taramira?