Subject- Aptitude for GATE
Faculty- Mr. Saurabh Thakur Sir
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source
225 & 252
1)225
2) 225+26(9+9+8)+1=252
Exactly one 7 = 225
At least one 7 =252
Waiting for other videos sir
Q1 208. Q2. 810
225,252
225 for exactly one and 252 for atleast one 7
Nice tutorial sir
Exactly one 7
Answer is 225
At least one 7
Answer 280
Exactly one 7: 225
At least one 7:280(100+90+90)
Exactly _225
Atleast_252
Sir please make the video on number series
Exactly one- 225
Atleast one- 280
280
Sir your videos are really good..but it will be better if you provide the solutions of previous test questions given by you
225 nd 252
Sir,ans1- 225
ans2- 280
Kitta complex kar diye sir cheezo ko….ye sab eise b samjh ni aata h aap aur jaan lelo
1. 898 total no between 100-1000
2. 252 atleast one 7
for one 7–>225 (72+72+81) for at least one 7–>243(72*3+9+8+9+1)
A)Exactly one-225(first 7placed at hundred position-1*9*9=81,2nd 7placed 10 position-8*1*9=72,3rd 7 at unit position-8*9*1=72)
B)Atleast one-(900-648=252),(total=9*10*10,not required=8*9*9=648)
225
252
exactly one 7=225
atleast one 7=252
Exactly one seven-225
Atleast one seven-252
224 and 251
exactly one seven = 225 and alteast one seven 252
(1*9*9)+(8*1*9)+(8*9*1)=225
Sir plz make one videos on all the challengeing problems
Sir, could you please upload videos for syllogism also