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5+55+55+555+…………..+ n terms 5(1+11+111+………………………+ n terms) Multiply and divide by 9 9/9 × 5(1+11+111+………………………+ n terms) 5/9 × (9+99+999+ …………………+ n terms) 5/9 × [(10-1) + (100-1) + (1000-1) +…………… + n terms] 5/9 × [(10 + 10² + 10³ +………+ n terms) – (1+1+1+………+ n terms)] 5/9 × [(10 + 10² + 10³ +………+ n terms) – n] In the series [10 + 10² + 10³ +………+ n terms] First term, a = 10 common ratio, r = 10 Sum of n terms = (a(r^n-1))/((r-1)) Therefore The required answer = 5/9 [((10(〖10〗^n-1))/9 - n)]
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varianc...
Statements: Some cow are bull.
All bull are sheep.
Conclusions: I. All bull are cow.
...
Statements:
No cube is a cuboid.
Some cuboids are cones.
All cones are quadrilateral.
Conclusion:
I. No cone is a...
Statements:
Some kitchen is balcony.
All balcony is room.
No room is floor.
Conclusions:
...
Read the given statement s and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varian...
Statements:
Only a few brown are blue.
Only blue is black.
Some blue are pink.
Conclusions:
I. Some pink are black.
Statement:
Some pens are erasers.
Only a few erasers are sharpeners.
All sharpeners are copies.
Conclusion:
I. Some p...
Statement:
Each tiger is a lion.
Only a few lion are dogs.
Some dogs are cats
Conclusion:
1. All lions are tiger...
Statements:
All Before are After
All After are Behind
Some Before are Opposite
Conclusions:
I. Some After are Oppo...
Statements: All gates are lights.
No street is a gate.
All lights are houses.
Conclusions I. All gates are houses.
II. So...
