What’s the Error? An analysis showed that 0.06 per cent of the T-shirts made by one company were defective. A student says this is 6 out of every 100. What is the student’s error?

(a) Science Application: The king cobra can reach a length of 558 cm. This is only about 60 per cent of the length of the largest reticulated python. Find the length of the largest reticulated python.

(b) Physical Science Application: Unequal masses will not balance on a fulcrum if they are at equal distance from it; one side will go up and the other side will go down.

Unequal masses will balance when the following proportion is true:

Two children can be balanced on a seesaw when

. The child on the left and child on the right are balanced. What is the mass of the child on the right?

(c) Life Science Application

A DNA model was built using the scale 2 cm : 0.0000001 mm. If the model of the DNA chain is 17 cm long, what is the length of the actual chain?

Language Application

Given below are few Mathematical terms.

Find

A. The ratio of consonants to vowels in each of the terms.

B. The percentage of consonants in each of the terms.

What’s the Error? A student said that the ratios and were proportional. What error did the student make?

What’s the Error? A clothing store charges Rs 1024 for 4 T-shirts. A student says that the unit price is Rs 25.6 per T-shirt. What is the error? What is the correct unit price?