Nandu bought a pen . HE paid for it with currency notes of denominations Re1 ,Rs 2 ,Rs 5 and Rs 10 using at least one note of each denomination. The total number of five and ten rupee notes used was one more than the total number of one and two rupee notes used. How many one rupee notes did Nandu used to pay for the pen
!)nandu used a total of 13 currency notes
2)The price of the pen was a multiple of ten

• Ans. 2
  let Re 1 be a,Rs 2 be b;Rs 5 be c;Rs 10 be d
  a+b+c+d=13
  c+d=a+b+1(given)
  a+b=6
  if(a has value 2 and b has 4 then only it will be multiple of ten)
  hence 2 is ans
• 11 years agoHelpfull: Yes(25) No(12)
• both statement together gives the ans
  
• 11 years agoHelpfull: Yes(21) No(1)
• Please just answer weather the question can be answered using any one of the statements alone or both the statements together
• 11 years agoHelpfull: Yes(4) No(2)
• Answer is: The statement can be answered by using both the conditions
• 9 years agoHelpfull: Yes(3) No(0)
• ans. will be none is sufficient to answer. option D.100% sure.i solved in exam and got full marks for this.
• 9 years agoHelpfull: Yes(3) No(5)
• ans is 4
  re 1*4=4
  re 2*3=6
  re 5*2=10
  re 10*4=40
  =60
• 11 years agoHelpfull: Yes(2) No(21)
• Let x be no. of notes of (1re + 2rs)
  Let y be no. of notes of (5rs + 10rs)
  Given that y = x + 1
  From the 1st condition, the only value that x and y can take are 6 and y respectively, so as to get the sum of theirs as 13 and also satisfy the condition that no. of notes used of 5rs and 10rs are 1 more than the no. of notes used of 1re and 2rs.
  
  Now say x = x1 + x2
  now since the price is a multiple of ten, we have to adjust this sum of x to a multiple of 5 (i.e. the unit digit should be 5 or 0)
  The only way the above condition can be satisfied is by having x1 = 2 and x2 = 4...
  Hence the no. of 1re notes used is 2
• 11 years agoHelpfull: Yes(1) No(1)
• both the statements are sufficient to answer
  1rs*2=2
  2rs*4=8
  5rs*2=10
  10rs*5=50
  total = 60 rs which isa multiple of ten and it has total 13 currency notes i.e. two 1rs+four 2rs+two 5rs+five 10rs
  
• 11 years agoHelpfull: Yes(1) No(2)
• what is d rght ans alone or both the statements together?
• 11 years agoHelpfull: Yes(1) No(0)
• Ans:-2
  
  as given there is 13 notes
  and 10,5 rs notes are one more than 1,2 rs notes
  
  than the only possibility that 6+7=13
  so
  a*1+b*2+c*5+d*10=e*10
  in that
  a+b=6
  c+d=7
  a*1+b*2 also should be 10's multiple
  for a+b=6 there is only possible solution to make ans 10's multiple
  a=2,b=4
  check it
  so 2 is right answwer
• 11 years agoHelpfull: Yes(1) No(2)
• a= 1 rupee notes
  b= 2 rupee notes
  c= 5 rupee notes
  d= 10 rupee notes
  given a+b+c+d=13
  and c+d+1=a+b
  
  int(13/2)=6
  so a+b=6
  and c+d=7
  possibility for 6= (4,2)(2,4)(3,3)(1,5)(5,1)
  possibility for 7= (4,3)(3,4)(2,5)(5,2)(6,1)(1,6)
  5*4+10*2=40 1*4+2*3=10
  5*2+10*4=50 1*3+2*4=11
  like this check the possibilities ,, we get 2 answers
  2-->5,4-->10,1-->4,2-->3
  or
  4-->5,2-->10,1-->4,2-->3
• 11 years agoHelpfull: Yes(1) No(4)
• Can be solved using both the statements together
  
  Total number of notes = 13
  7 (1 and 2 currency notes)
  6 (5 and 10 currency notes)
  
  only possibility
  
  2 notes of currency 1
  4 notes of currency 2
  4 notes of currency 5
  3 notes of currency 10
  
  cost = 60
  
• 11 years agoHelpfull: Yes(1) No(0)
• Both statement together will give the answer because only the sum of 1 & 2 rs note and 5 & 10 rs note is given nither the seprate count of 1 n 2 rs note nore that of 5 & 10 rs note is given
• 9 years agoHelpfull: Yes(1) No(0)
• option - d is correct. bcoz we are not getting Unique value of rs.1,2,5,10...llarly for statement 2
• 9 years agoHelpfull: Yes(1) No(0)
• @pankaj please explain how have u taken a+b=6
• 11 years agoHelpfull: Yes(0) No(3)
• Both the statements are required to answer this question. As its given, the total number of 5 and 10 rupee notes is one more than the total no.of 1 and 2 rupee notes and also a total of 13 currency notes are used, this is possible if the total no.of 5 and 10 rs.note = 7 and total no.of 1&2 rs.note =6.....
  since the pen is a multiple of 10, it is possible only when we take
  1 rs.note = 2
  2 rs.note = 4
  5 rs.note = 2
  10 rs.note = 5
  therefore the total amount is rs.70 and it needs both the statements to answer...
• 10 years agoHelpfull: Yes(0) No(0)
• 7 and 6
  (5/3/1*10)+(2/4/6*5)+(4*2)+(2*1)=10x
• 9 years agoHelpfull: Yes(0) No(0)
• Answer is...both statements are needed together to get the answer.
  
  if we take only 1st statement, we can only say that rs. 1and 2 together are 6 in number
  and rs. 5 and 10 together are 7 in number. Any combination for rs. 1 and 2 are possible for total 6 coins.
  
  if we take only 2nd statement, many combinations are possible to get total cost as multiple of 10.so, we won't get any particular solution.
  
  Taking together 1 and 2 statements, we can use them as constraints for each other.
  we will have rs.1*2 +rs.2*4 =rs.10 (6 coins).......only this combination is possible
  rs. 5*6 +rs.10*1 =rs.40 (7 coins)......can be any combination for 5 and 10 rupees coin.
  
  so, to get rs.1 coin as 2 in number, both statements are needed.
• 7 years agoHelpfull: Yes(0) No(0)