LCM of More Than Two Numbers

Q.

The LCM of two numbers is $12$ and their sum is $10$. What are the numbers?

Q. Find LCM of $24,48$ and $18$?

1. $128$
2. $144$
3. $160$
4. $96$

Q.

A boy saves $Rs.5.75$. The least number of days in which he will be able to save an exact number of rupees, is

1. $6$ days

2. $8$ days

3. $2$ days

4. $4$ days

Q.

What are common multiples and their applications?

Q. The lowest comman multiple of numbers 36, 315, 90 and 28 will be

Q. The lowest number which leaves 4 as a remainder when divided by 10, 50 and 15 is

Q. Rachel planted periwinkles, lilies, tulips and primroses in $4$ different pots. The periwinkles bloom every 2 days, the lilies every $4$ days, the tulips every $6$ days and the primroses every $8$ days. If they bloomed together on the $1^{st}$ day of the month, then they will bloom together again on

1. ${24}^{th}$ day of that month
2. ${12}^{th}$ day of that month
3. ${28}^{th}$ day of that month
4. ${20}^{th}$ day of that month

Q. A shopkeeper sells balloons in the pack of 40, Candles in a pack of 16 and Candies in pack of 30. Justina wants to celebrate her son's birthday for which these things are required. What will be the least total number of all these things that Justina should buy so that there will be one balloon for each candle and each candy?

1. $240$
2. $40$
3. $120$
4. $16$