Let pp,qq and rr be 2 digit numbers where p less than q less than r ...| UPSC | CSAT 2023 | Avishek

Let pp, qq and rr be 2 digit numbers where p less than q less than r. If pp + qq + rr = tt0,
where tt0 is a 3-digit number ending with zero, consider the following statements:

1. The number of possible values of p is 5
2. The number of possible values of q is 6

Which of the above statements is/are correct ?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

UPSC CSAT 2023 solutions #csat #csat2023 #upsc #aptitude #reasoning
By Avishek Sinha

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[mementomori]

Wondering could anyone solve this type of question under 2 minutes accurately in exam hall.

[pramodprajapati]

Thanks a lot, your videos are very much helping and concept builder with ease

[nirvikalpamishra]

Sir you are angel as you have explained this question within 2 minutes and not missing any concepts . Thankyou sir I really liked these videos.

[dattatreyaprasad]

There's another possibility of 55, 77, 88

[Mahi-lyur]

Please if there is correction, either delete the video and upload new one or mention mistake in discription or comment please

[drxaishwarya]

P equal to zero bhi to le sakte hai sir usme non zero digit to nhi bola hai

[aartibhagat]

I have a doubt.. answer is given as tt0 and p, q, r and t all should be different no. by logic.. but p is 1, t is also 1 (110) in the first three cases as you have written..and hence should not be counted.😅 And therefor only FOUR values of P and Q are possible otherwise T is also holding the same no.

[triptigosai]

1st me hi mistake hai pp aur tt dono 11 ho rahe hain

[moinali]

why don’t we start with the value of p as zero ?