Maths Questions and Answers Practice Question and Answer
8 Q: α and β is two root of a equations $$2x^2-7x+ 12=0 $$ then the value of $$ {α \over β } + {β \over α }=? $$
1781 15e5cce98074319409ea12078
5e5cce98074319409ea12078- 124false
- 2$$ {1 \over 24 }$$true
- 312false
- 4$$ {1 \over 12 }$$false
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Answer : 2. "$$ {1 \over 24 }$$"
Q: What is the predecessor of 218010?
1692 062570a7a0560954965a49a4e
62570a7a0560954965a49a4e- 1228010false
- 2218011false
- 3218009true
- 4218000false
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Answer : 3. "218009 "
Q: Ratio between the time taken by A and B to complete a certain work is 4:5. If together they can complete a work in 20 days, in how many days can A alone complete it? 1541 05d148bc397a68b089a7aa708
5d148bc397a68b089a7aa708- 130false
- 232false
- 336true
- 445false
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Answer : 3. "36"
Q: Denominator of a rational number exceeds its numerator by 8. If 17 is added to the numerator and 1 is subtracted from denominator we get the rational number 3/2 then the rational number is
1499 0628b665c44265e01a97fe4e1
628b665c44265e01a97fe4e1- 113/21true
- 221/13false
- 313/7false
- 47/13false
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Answer : 1. "13/21"
Q: Find out the value of a when $$x^3+ax^2+ 2x+3 $$ is divisible by (x+1)?
1494 05e5cce14db545f45b2c9610e
5e5cce14db545f45b2c9610e- 12false
- 20true
- 33false
- 4-1false
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Answer : 2. "0"
Q: If x1 and x2 are the roots of the equations bx2-ax + log2my=0 such that x12=a2+x22 then evaluate the roots in terms of a and b.
1472 0600e929e377d750b4eb49c40
600e929e377d750b4eb49c40- 1$$ {a\over2ab}{(a^{2}+1)},{a\over2ab}{(1-b^{2})}$$true
- 2$$ {a\over2b}{(b^{2}+1)},{a\over2b}{(1-a^{2})}$$false
- 3$$ {a\over2ab}{(b^{2}-1)},{a\over2ab}{(1-b^{2})}$$false
- 4$$ {a\over2b}{(b^{2}+1)},{a\over2b}{(1-b^{2})}$$false
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Answer : 1. "$$ {a\over2ab}{(a^{2}+1)},{a\over2ab}{(1-b^{2})}$$"
Q: A circle has two parallel chords of lengths 6cm and 8 cm. If the chords are 1cm apart and the centre is on the same side of the chords, and then find the length of diameter of the circle.
1430 062570d900560954965a49e12
62570d900560954965a49e12- 112 cmfalse
- 210 cmtrue
- 35 cmfalse
- 46 cmfalse
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Answer : 2. "10 cm "
Q: How many pairs of twin primes are there between the integers 1 to 100?
1268 06256feb197d72a7e43b2a874
6256feb197d72a7e43b2a874- 15false
- 26false
- 37false
- 48true
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