Find the sum of all three digits multiples of 4.
class 10 cbse arthmetic progressions.

First 3 digit multiple = 100

Last 3 digit multiple = 996

AP: 100, 104, 108...996

an = 996

a + (n-1)d = 996

100 + (n-1)4 = 996

(n-1)4 = 896

(n-1) = 224

Therefore n = 225

Sn = n(a+l)/2

= 225(100+996)/2

= 225 x 548

= 123300

Hope this helps!

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.

b i think

step-by-step explanation:

not really sure