₦airaland Forum

Biqsahm:
Dis tin simple ooo. J=8. I=2. H=3 G =8. F. =90. E=100 D= 10. C=40. d first box is 72 n d second box is 36 i fr explain oo but I Dey too tired to dey type epistle dis morning , chill sha make other nairaland gurus come with deir own suggestions sha.

harsysky:
The explanation is that you compare the left handside with the RHS. Basically, take the difference btw the first number on the LHS and that of the RHS, so what you get as the difference will be what you will use to either add to the RHS or subtract from the LHS.
30>45>55 ∆ 15>30>40
Compare LHS 30 and RHS 15, the difference is 15 and that 15 cuts across the others too

but in the example 30+15 =45
45+10 =55

So,I5 is added first and later 10 is added.
That is what happens on the RHS also;15 is added first and later 10 is added.


So how can the exercises with different figures be solved

1. What number is to be added first.
2 what number is to be added second.

Thanks for your time.


1. 36 > 48 > ? ∆ 24>?>60
What is the diff btw 36 and 24 = 12
48-12 = ans 36
? - 12= 60 ........72


2. 20 > ? > 60 ∆ ? >30>50
60- ?= 50
? = 10

? -10=30
?= 40

harsysky:
The explanation is that you compare the left handside with the RHS. Basically, take the difference btw the first number on the LHS and that of the RHS, so what you get as the difference will be what you will use to either add to the RHS or subtract from the LHS.
30>45>55 ∆ 15>30>40
Compare LHS 30 and RHS 15, the difference is 15 and that 15 cuts across the others too


1. 36 > 48 > ? ∆ 24>?>60
What is the diff btw 36 and 24 = 12
48-12 = ans 36
? - 12= 60 ........72


2. 20 > ? > 60 ∆ ? >30>50
60- ?= 50
? = 10

? -10=30
?= 40