Maths Questions and Answers Practice Question and Answer
8 Q: A basket consists of five blue balls, four green balls, two red balls and three yellow balls. Three balls are drawn at random. What is the probability that at least one blue ball is drawn?
1606 05dfa0e3f36644b47cbafbbda
5dfa0e3f36644b47cbafbbda- 1$$ {8\over13}$$false
- 2$$ {9\over13}$$false
- 3$$ {10\over13}$$true
- 4$$ {11\over13}$$false
- 5None of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "$$ {10\over13}$$"
Q: What is the predecessor of 218010?
1537 062570a7a0560954965a49a4e
62570a7a0560954965a49a4e- 1228010false
- 2218011false
- 3218009true
- 4218000false
- Show AnswerHide Answer
- Workspace
- SingleChoice
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? 1378 05d148bc397a68b089a7aa708
5d148bc397a68b089a7aa708- 130false
- 232false
- 336true
- 445false
- Show AnswerHide Answer
- Workspace
- SingleChoice
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
1377 0628b665c44265e01a97fe4e1
628b665c44265e01a97fe4e1- 113/21true
- 221/13false
- 313/7false
- 47/13false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "13/21"
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.
1369 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
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "$$ {a\over2ab}{(a^{2}+1)},{a\over2ab}{(1-b^{2})}$$"
Q: Find out the value of a when $$x^3+ax^2+ 2x+3 $$ is divisible by (x+1)?
1357 05e5cce14db545f45b2c9610e
5e5cce14db545f45b2c9610e- 12false
- 20true
- 33false
- 4-1false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "0"
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.
1272 062570d900560954965a49e12
62570d900560954965a49e12- 112 cmfalse
- 210 cmtrue
- 35 cmfalse
- 46 cmfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "10 cm "
Q: A triangle and a parallelogram are on the same base and between the same parallels. The ratio of the area of triangle and parallelogram is______.
1104 062570af7ac719c4dd28dcdfa
62570af7ac719c4dd28dcdfa- 11 : 3false
- 21 : 2true
- 32 : 3false
- 43 : 4false
- Show AnswerHide Answer
- Workspace
- SingleChoice