Find HCF and LCM of $1278 \mathrm{and} 1704$.

Important Questions on Playing With Numbers

HARD

6th ICSE

IMPORTANT

Cambridge connection Mathematics>Chapter 6 - Playing With Numbers>Assessment>Q 13

Find the largest number which on dividing $3740 \mathrm{and} 3155$ leaves remainders $2 \mathrm{and} 5$, respectively.

MEDIUM

6th ICSE

IMPORTANT

Cambridge connection Mathematics>Chapter 6 - Playing With Numbers>Assessment>Q 14

The H.C.F. of two numbers is $11$ and their L.C.M. is $616$. If one of the numbers is $88$, find the other.

MEDIUM

6th ICSE

IMPORTANT

Cambridge connection Mathematics>Chapter 6 - Playing With Numbers>Assessment>Q 15

The H.C.F. of two numbers $135 \mathrm{and} 150 \mathrm{is} 15$. Find the L.C.M.

HARD

6th ICSE

IMPORTANT

Cambridge connection Mathematics>Chapter 6 - Playing With Numbers>Assessment>Q 16

An oil seller had three types of oil $671 \mathrm{L}$ of first kind, $549 \mathrm{L}$ of second kind and $793 \mathrm{L}$ of third kind. Find the least possible numbers of cans of equal size in which different types of oil can be filled without mixing.

HARD

6th ICSE

IMPORTANT

Cambridge connection Mathematics>Chapter 6 - Playing With Numbers>Assessment>Q 17

There are five bells which ring at intervals of $4, 9, 16, 20 \mathrm{and} 30$ seconds, respectively. If all the five bells start ringing at $10 \mathrm{o}\text{'}\mathrm{clock}$, then when  will they next ring together?

HARD

6th ICSE

IMPORTANT

Cambridge connection Mathematics>Chapter 6 - Playing With Numbers>Assessment>Q 18

The three dimensions, i.e., the length, breadth and height of a dinning hall of a house are $450 \mathrm{cm}, 750 \mathrm{cm} \mathrm{and} 800 \mathrm{cm}$, respectively. Determine the length of the longest tape that can measure all these three dimensions with $100\%$ accuracy.

HARD

6th ICSE

IMPORTANT

Cambridge connection Mathematics>Chapter 6 - Playing With Numbers>Assessment>Q 19

Six bullets are released from six different toy guns at intervals of $3, 4, 6, 10, 12 \mathrm{and} 18$ seconds, respectively. Determine the intervals at which they all will be fired together.

HARD

6th ICSE

IMPORTANT

Cambridge connection Mathematics>Chapter 6 - Playing With Numbers>Assessment>Q 20

Find the least number which when divided by $18$ gives a remainder $13$, when divided by $21$ gives a remainder $16$ and when divided by $27$ gives a remainder $22$.