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Jun 1, 2014

Solution:

Prime factorisation of the given numbers are

9 = 3^{2}

12 = 2^{2} Ã— 3

15 = 3 Ã— 5

18 = 3^{2}

Prime factorisation of the given numbers are

9 = 3

12 = 2

15 = 3 Ã— 5

18 = 3

Anmol Saket

Sep 23, 2013

The HCF & LCM of two numbers are 13 and 1989 respectively. If one of the numbers is 117, determine the other

This answer has an image. Please click on the question to read more.

Harshit Singh

Nov 29, 2012

The traffic lights at three different road crossing change after 72 seconds. 108 seconds and 132 seconds respectively. If they change simultaneously at 7am. then the time they will change again simultaneously is __________.

This answer has an image. Please click on the question to read more.

Hari Dev

Jun 2, 2015

which is the largest whole number?

Answer.

There is no Largest Number

There is no Largest Number

Roshin george roy

Sep 16, 2013

I need sample SA1 question paper

Sa 1 question paper

Sandeepa Banerjee

Aug 20, 2014

An aeroplane was flying at a height of 1600 m. From the time it started to land, it made a change of 70 m in every minute. How many minutes will it take to descend to a height of 200 m from the ground?An aeroplane was flying at a height of 1600 m. From the time it started to land, it made a change of 70 m in every minute. How many minutes will it take to descend to a height of 200 m from the ground?

An aeroplane was flying at a height of 1600 m. From the time it started to land, it made a change of 70 m in every minute. How many minutes will it take to descend to a height of 200 m from the ground?Sol:

Height at which the aeroplane is flying = 1600 m

Height to travel to come down to 200 m from the ground = 1600 - 200 = 1400 m

Rate of change = 70 m in every minute

Height at which the aeroplane is flying = 1600 m

Height to travel to come down to 200 m from the ground = 1600 - 200 = 1400 m

Rate of change = 70 m in every minute

Anmol Saket

Sep 24, 2013

Subtract the sum of -27 and -13 from the difference of -19 and -15.

The sum of (-27)and(-13)
=(-27)+(-13)
=-27-13=-40
Now,the sum of (-19)and(-15)
=-19-(-15)
...

Roshin george roy

Sep 16, 2013

I need SA1 real exam paper.

Please go through the SA 1 sample question papers from the following link:

https://www.learnnext.com/sample-papers.htm ...

https://www.learnnext.com/

Slshikhilsankaran

Aug 4, 2013

Solve by using distributive property.

1.There are 8 baskets,each having 7 apples.If 3 apples are taken away from each basket,how many apples in total left in the basket.

1.There are 8 baskets,each having 7 apples.If 3 apples are taken away from each basket,how many apples in total left in the basket.

FORMULAE=A*(B-C)

=8*(7-3)=8*4=32

=8*(7-3)=8*4=32

Tanmay

Jun 8, 2015

General rule of estimation

Estimation is used to make calculation easier, to give rough idea about the quantity.

The general rule for estimation is to look at the digit to the right if the digit you want to estimate. If yo...

The general rule for estimation is to look at the digit to the right if the digit you want to estimate. If yo...

Shagun

Jun 1, 2014

Solution:

Prime factorisation of the given numbers are

9 = 3^{2}

12 = 2^{2} Ã— 3

15 = 3 Ã— 5

18 = 3^{2}

Prime factorisation of the given numbers are

9 = 3

12 = 2

15 = 3 Ã— 5

18 = 3

Anmol Saket

Sep 23, 2013

The HCF & LCM of two numbers are 13 and 1989 respectively. If one of the numbers is 117, determine the other

This answer has an image. Please click on the question to read more.

Harshit Singh

Nov 29, 2012

The traffic lights at three different road crossing change after 72 seconds. 108 seconds and 132 seconds respectively. If they change simultaneously at 7am. then the time they will change again simultaneously is __________.

This answer has an image. Please click on the question to read more.

Hari Dev

Jun 2, 2015

which is the largest whole number?

Answer.

There is no Largest Number

There is no Largest Number

Roshin george roy

Sep 16, 2013

I need sample SA1 question paper

Sa 1 question paper

Sandeepa Banerjee

Aug 20, 2014

An aeroplane was flying at a height of 1600 m. From the time it started to land, it made a change of 70 m in every minute. How many minutes will it take to descend to a height of 200 m from the ground?An aeroplane was flying at a height of 1600 m. From the time it started to land, it made a change of 70 m in every minute. How many minutes will it take to descend to a height of 200 m from the ground?

An aeroplane was flying at a height of 1600 m. From the time it started to land, it made a change of 70 m in every minute. How many minutes will it take to descend to a height of 200 m from the ground?Sol:

Height at which the aeroplane is flying = 1600 m

Height to travel to come down to 200 m from the ground = 1600 - 200 = 1400 m

Rate of change = 70 m in every minute

Height at which the aeroplane is flying = 1600 m

Height to travel to come down to 200 m from the ground = 1600 - 200 = 1400 m

Rate of change = 70 m in every minute

Anmol Saket

Sep 24, 2013

Subtract the sum of -27 and -13 from the difference of -19 and -15.

The sum of (-27)and(-13)
=(-27)+(-13)
=-27-13=-40
Now,the sum of (-19)and(-15)
=-19-(-15)
...

Roshin george roy

Sep 16, 2013

I need SA1 real exam paper.

Please go through the SA 1 sample question papers from the following link:

https://www.learnnext.com/sample-papers.htm ...

https://www.learnnext.com/

Slshikhilsankaran

Aug 4, 2013

Solve by using distributive property.

1.There are 8 baskets,each having 7 apples.If 3 apples are taken away from each basket,how many apples in total left in the basket.

1.There are 8 baskets,each having 7 apples.If 3 apples are taken away from each basket,how many apples in total left in the basket.

FORMULAE=A*(B-C)

=8*(7-3)=8*4=32

=8*(7-3)=8*4=32

Tanmay

Jun 8, 2015

General rule of estimation

Estimation is used to make calculation easier, to give rough idea about the quantity.

The general rule for estimation is to look at the digit to the right if the digit you want to estimate. If yo...

The general rule for estimation is to look at the digit to the right if the digit you want to estimate. If yo...