Question
If it was Saturday on 1st January 1972, then, what was
the day of the week on 27th September 1972?Solution
1972 was a leap year. So, 270 (31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 26) days have passed till 26 th September 1972. The days of the week repeat itself after 7 days. Number of odd days = 4. So, it was Wednesday on 27 th September 1972.
For which value of m, there is no solution to the equation -
a – b = 5
ma – 4b = 1
If 0.4x + 0.6y = 26 and x - y = 10, find x.
The slope of the equation 24x+ 8y =56 is
If 2x + 3y = 27 and 3x - y = 13, find (x + y).
The ratio of roots of an equation
ax²+bx+b = 0 is p : q
Then find, √p/√q + √q/√p + √p/√q ?
Find the value of 'a' and 'b' which satisfy the following equations:
9a + 7b = 30
4a - 5b = 62
I. p² - 365 = 364
II. q - √ 529 = √ 169
Solve for x: 5x − 7 = 3x + 9
If (5√P - 7√Q) = 5, [1.5P = 4Q-(R/3)+9] and (√P/√Q) = 1.6, then find out the value of ‘R’.
The ratio of roots of the equation mx2 + nx + n = 0 is α/ β = a/b, then find the value of `sqrt(a/b)+sqrt(b/a)+sqrt(n/m)`
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