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Question
Find the missing number:6,24,60,120,210,336,?,720
6,24,60,120,210,336,?,720
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Solution
The correct option is C 504
Option C is the correct answer
Explanation:
Each term is obtained by adding multiples of 6 with series 0,1,3,6,10,15,21,28,36..(exp: 0+(1),1+(2),3+(3),6+(4),10+(5),15+(6),20... (the difference bw the series is 1,2,3,4,5,6,7,8,...)
0+ 1(6)=6
6+3(6) =6+18=24
24+6(6) = 24+36 = 60
60 + 6(10) = 60+90=120
120 + 6(15) = 120 + 90=210
210 + 6(21) = 210 + 126 = 336
336 + 6(28) = 336 + 168= 504
Hence 504 is the correct answer
Option C is the correct answer
Explanation:
Each term is obtained by adding multiples of 6 with series 0,1,3,6,10,15,21,28,36..(exp: 0+(1),1+(2),3+(3),6+(4),10+(5),15+(6),20... (the difference bw the series is 1,2,3,4,5,6,7,8,...)
0+ 1(6)=6
6+3(6) =6+18=24
24+6(6) = 24+36 = 60
60 + 6(10) = 60+90=120
120 + 6(15) = 120 + 90=210
210 + 6(21) = 210 + 126 = 336
336 + 6(28) = 336 + 168= 504
Hence 504 is the correct answer
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