First time user?    |

#### Select chapter

hcf and lcm (5.papers)
averages (8.papers)
problems on ages (9.papers)
percentage (4.papers)
profit and loss (4.papers)
chain rule (5.papers)
time and work (4.papers)
partnership (6.papers)
simple interest (4.papers)
clock (2.papers)
calendar (3.papers)
Hide

1
`The product of the L.C.M. and H.C.F. of two numbers is 24. The difference of two numbers is 2. Find the numbers.`
1. `2 and 4`
2. `6 and 4`
3. `8 and 6`
4. `8 and 10`
Share
2
`The greatest number of four digits which is divisible by 5, 15, 30 and 65 is: `
1. `9000`
2. `9400`
3. `9750`
4. `9800`
Share
Share
4
`The G.C.D. of 1.54, 0.56 and 0.98 is: `
1. `0.07`
2. `0.13`
3. `0.14`
4. `0.15`
Share
Share
6
`The HCF of two numbers is 13. Which one of the following can never be their LCM?`
1. `39`
2. `91`
3. `156`
4. `60`
Share
7
`Three numbers are in the ratio 2:3:4 and their LCM is 600. Their HCF is `
1. `40`
2. `50`
3. `100`
4. `150`
Share
Share
9
```H.C.F. of 3240, 3600 and a third number is 36 and their L.C.M. is 2^4 x 3^5 x 5^2 x 7^2 The third number is:
```
1. `2^2 x 3^5 x 7^2`
2. `2^2 * 5^3 * 7^2`
3. `2^2 * 5^2 * 7^2`
4. `2^3 * 3^5 * 7^2`
Share
10
`The H.C.F of 156, 910 and 1105 is:`
1. `13`
2. `18`
3. `19`
4. `21`
Share
11
`L.C.M. of two prime numbers p and q (p > q) is 155. The value of p – q is:`
1. `26`
2. `17`
3. `6`
4. `65`
Share
Share
13
`The H.C.F. of 1.35, 3.15 and 6.75 is:`
1. `0.09`
2. `0.9`
3. `4.5`
4. `0.45`
Share
Share
Share
16
`The least multiple of 5, which leaves a remainder of 5, when divided by 8, 12, 20 is:`
1. `74`
2. `94`
3. `184`
4. `125`
Share
Share
Share
19
`The following number which is having the most number of divisors is?`
1. `99`
2. `101`
3. `176`
4. `182`
`The H.C.F. of 6/7 , 14/25 , 18/35 and 21/40 is:`
1. `3/4`
2. `3/1000`
3. `2/7`
4. `None of the above`