Knockout NEET 2024
Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.
Q2.
(ii) Write a 4-digit number as
If the number is divisible by 11, then what can you say about
?
Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.
Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.
Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.
Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.
Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.
If the number abcd is divisible by 11 then [ (b + d) - (a + c) ] also must be divisible by 11.
let the number be 1089
here a = 1, b = 0, c = 8 and d = 9
1089 = 1000*1 + 100*0 + 10*8 + 9
= (1001*1 + 99*0 + 11*8) + [(0 + 9) - (1 + 8)]
= 11(91*1 + 9*0 + 8) + [ 9 - 9 ]
here [ (b + d) - (a + c) ] = [9 - 9 ] = 0 which is divisible by 11.
hence If the number abcd is divisible by 11 then [ (b + d) - (a + c) ] also must be divisible by 11.