Total Pages = 42+28 = 70 pages
for 70 pages we give Rs.20/-
and for 42 pages we give x
thus x = (42×20)/70
x = 12
The Answer = 12/-
North-east
Second
1/8
let no. of boys not participating be x
then the no. of girls not participating = x+5
no. of boys : girls participating = 3:2
given no.of boys participating = 15
therefore, the ratio is now 15:y(say)
then 3:2 = 15 : x
on solving 3/2 =15/y ie.., 3y =30 we get y =10
hence no. of girls participating =10
therefore total no of students paricipating = 15+10=25
total no of students in class =60 given
hence no. of students not participating = 60-25=35
therefore x+(x+5)=35
2x=30
x=15
therfore no of girls not participating =15+5=20
therefore total no of girls in class = no of girls
participating + no of girls not participating
=10+20
=30 is the answer
Reliable Assistance: I promise to provide reliable and accurate assistance in answering questions, providing information, and engaging in meaningful conversations. I strive to deliver helpful and relevant responses to the best of my abilities, drawing from the vast knowledge and information I have been trained on.
Continuous Improvement: I promise to continuously improve my capabilities and expand my knowledge base. As technology evolves and new information becomes available, I aim to stay up-to-date and provide the most accurate and relevant information possible. I strive to enhance my understanding of different topics and improve the quality of my responses over time.
Respectful and Ethical Interaction: I promise to interact with users in a respectful and ethical manner. I am programmed to respect user privacy, confidentiality, and cultural sensitivities, aiming to provide a positive and helpful experience for those who engage with me.
Please note that while I can provide valuable assistance and information, there are certain tasks that may be better suited for human professionals with expertise in specific fields.
13.5
Slice the cake
cost price(c.p) of one fruit = 24/16
(c.p) = Rs 1.50
selling price(s.p) of one fruit = 18/8
(s.p) =Rs 2.25
profit for one fruit = 2.25 – 1.50 = 0.75
profit
profit % = ———– * 100
cost price
0.75
= ——- * 100
1.50
= 50%
Since, there are 10 points on the circle and to draw a chord we need to connect any two points on the circle to make it a straight line, which implies that the number of chords = No of lines connecting any two points out of the 10 points
= 10C2 = 10*9/2 = 45 chords.