Question
Soham says, "I have as many sisters as brothers." Pooja
says, "Each of us sisters has only half as many sisters as brothers." Assuming that Soham and Pooja are brother and sister, how many brothers and sisters does the family have?Solution
Let no. of brother be X and no. of sister be Y. As Sohan says "I have as many sister as brothers" ⇒ (X - 1) = Y -----(1) (He himself be not counted) as Pooja says "Each of us sister has only half as many sister as brothers". ⇒ Y - 1 = 0.5 × X ----- (2) (She herself be not counted) Solving both equation, Rearranging (1) ⇒ X = Y + 1 --------- (3) Substituting (3) into (2) ⇒ Y - 1 = 0.5 × (Y + 1) -------- (4) Solving (4) ⇒ 2Y - 2 = Y + 1 ⇒ Y = 3 Substituting Y = 3 into (3) We get: X = 3 + 1 = 4 Therefore, answer is 3 Sister and 4 brother Hence, the correct answer is "4 brothers and 3 sister".
In a certain language NUMBERS is written as LVMCRSD. How is FORWARD is written as?
In a certain code language, ‘199131625’ is related to 'SIMPLY' in the same way ‘7112121514’ is related to which of the following words?
...What is the code for the word ‘guest venue’ in the given code language?
In a certain code language, ' PLOT ' is written as ' 63 ', and ' SOUP ' is written as ' 71 '. Which of the following are correct matches as per the give...
In a certain code language ‘PARTY’ is written as ‘OBQSX’ and ‘RATIO’ is written as ‘QBSJP’. How is ‘LEVEL’ written in that code? �...
In a certain code language, ‘GLEFK’ is written as ‘DIBMH’ and ‘QRYHN’ is written as ‘NOVEK’. How will ‘POTER’ be written in that lan...
What does the code “E3! E4% C4@” stands for?
In a certain code language, 'TREATS' is coded as 'VPHXXO' and 'REGRET' is coded as 'TCJOIP', then 'SINGLE' is coded as ____ in the same code language.
If in a certain code language ‘melody seem’ is coded as ‘dru bin’, then which of the following is coded as ‘min bit’?
What is the code of “Patient Water”?
Relevant for Exams:
