Question
The sum of three numbers is 178. If the ratio of the
first to the second is 2:5 and that of second to the third is 7:8, then find the second number.Solution
Let the first, second and third number be a,b and c respectively. a : b = 2 : 5 b : c = 7 : 8 a : b : c = 2×7 : 5×7 : 8×5 a : b : c = 14 : 35 : 40 a + b + c = 178 => 89k = 178 => k = 2 Therefore, the second number is (b) = 35 × 2 = 70
The rural development projects and men behind them are listed below. Which of the following is correctly matched?
1.      Bhoodan Movement...
Which of these green house gas is most abundant in the atmosphere?
What is the end product of the nitrification process in the nitrogen cycle?
 What is the seed rate of hybrid cotton with a spacing of 120 × 60 cm?
The form of education which is confined within the boundaries and follow a set pattern of curriculum is termed as
Which cereal crop is most tolerant to saline and alkali soils
Sand dunes are commonly seen in:
Average capacity of a windmill would be about:
What is conservation agriculture?
A system in which forest trees are grown along with agricultural crops and grasses on the same land at the same time is known as ____
Relevant for Exams:
