Question
Find the sum of all those 3-digit numbers which when
divided by 10 leave a remainder of 5.Solution
Numbers 105, 115, 125, ……985, 995 first number (a) = 105 The last number (8) = 995 All difference (d) =10 From the formula, nth term (Tn) = a + (n-1) d, 995=105+(n-1) 10  n = 90  Sum of n terms (Sn) =n/2 [2a+(n-1) d]  90/2[2 ×105+ (90-1)10] = 45 [210+890] = 45 × 1100  = 49500.
______ is the Secretariat for implementation of National Programme for Organic Production (NPOP).
_____ clay has the highest capacity to absorb exchangeable cations .
Production of one (main product) without the other (by-product) is not possible in case of:
Given below are two statements
Statement I: Acid sulphate soil is formed due to formation of Jarosite.
Statement II: Acid sulphate ...
Which organization raises funds and disburses loans to NDDB/NCDC under the Dairy Processing & Infrastructure Development Fund (DIDF)?
Soil moisture tension is directly measured by
In which grafting Rootstock debarked 45 cm from ground level two slopes cut given and wedge is made tongue shape scion inserted?
Which one of the following is a cold-blooded animal?
Blind tillage is
Napier X Bajra hybrid is a cross between:
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